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                    Map
            
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                    测试键值对是否存在及删除元素
            
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                    将 map 的键值对调
            
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<li class="chapter " data-level="1.2.3.6.3" data-path="../../the-way-to-go/eBook/09.3.html">
  
  <a href="../../the-way-to-go/eBook/09.3.html">
    
                    
                    锁和 sync 包
            
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<li class="chapter " data-level="1.2.3.6.4" data-path="../../the-way-to-go/eBook/09.4.html">
  
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                    精密计算和 big 包
            
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</li>

<li class="chapter " data-level="1.2.3.6.5" data-path="../../the-way-to-go/eBook/09.5.html">
  
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                    自定义包和可见性
            
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<li class="chapter " data-level="1.2.3.6.6" data-path="../../the-way-to-go/eBook/09.6.html">
  
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                    为自定义包使用 godoc
            
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<li class="chapter " data-level="1.2.3.6.7" data-path="../../the-way-to-go/eBook/09.7.html">
  
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                    使用 go install 安装自定义包
            
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<li class="chapter " data-level="1.2.3.6.8" data-path="../../the-way-to-go/eBook/09.8.html">
  
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                    自定义包的目录结构、go install 和 go test
            
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<li class="chapter " data-level="1.2.3.6.9" data-path="../../the-way-to-go/eBook/09.9.html">
  
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                    通过 Git 打包和安装
            
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<li class="chapter " data-level="1.2.3.6.10" data-path="../../the-way-to-go/eBook/09.10.html">
  
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                    Go 的外部包和项目
            
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<li class="chapter " data-level="1.2.3.6.11" data-path="../../the-way-to-go/eBook/09.11.html">
  
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                    在 Go 程序中使用外部库
            
    </a>
    

    
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    </ul>
    
</li>

<li class="chapter " data-level="1.2.3.7" data-path="../../the-way-to-go/eBook/10.0.html">
  
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                    结构（struct）与方法（method）
            
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<li class="chapter " data-level="1.2.3.7.1" data-path="../../the-way-to-go/eBook/10.1.html">
  
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                    结构体定义
            
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<li class="chapter " data-level="1.2.3.7.2" data-path="../../the-way-to-go/eBook/10.2.html">
  
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                    使用工厂方法创建结构体实例
            
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<li class="chapter " data-level="1.2.3.7.3" data-path="../../the-way-to-go/eBook/10.3.html">
  
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                    使用自定义包中的结构体
            
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<li class="chapter " data-level="1.2.3.7.4" data-path="../../the-way-to-go/eBook/10.4.html">
  
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                    带标签的结构体
            
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<li class="chapter " data-level="1.2.3.7.5" data-path="../../the-way-to-go/eBook/10.5.html">
  
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                    匿名字段和内嵌结构体
            
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<li class="chapter " data-level="1.2.3.7.6" data-path="../../the-way-to-go/eBook/10.6.html">
  
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                    方法
            
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<li class="chapter " data-level="1.2.3.7.7" data-path="../../the-way-to-go/eBook/10.7.html">
  
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                    类型的 String() 方法和格式化描述符
            
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<li class="chapter " data-level="1.2.3.7.8" data-path="../../the-way-to-go/eBook/10.8.html">
  
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                    垃圾回收和 SetFinalizer
            
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</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.2.3.8" data-path="../../the-way-to-go/eBook/11.0.html">
  
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                    接口（interface）与反射（reflection）
            
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<li class="chapter " data-level="1.2.3.8.1" data-path="../../the-way-to-go/eBook/11.1.html">
  
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                    接口是什么
            
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<li class="chapter " data-level="1.2.3.8.2" data-path="../../the-way-to-go/eBook/11.2.html">
  
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                    接口嵌套接口
            
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<li class="chapter " data-level="1.2.3.8.3" data-path="../../the-way-to-go/eBook/11.3.html">
  
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                    类型断言：如何检测和转换接口变量的类型
            
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<li class="chapter " data-level="1.2.3.8.4" data-path="../../the-way-to-go/eBook/11.4.html">
  
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                    类型判断：type-switch
            
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<li class="chapter " data-level="1.2.3.8.5" data-path="../../the-way-to-go/eBook/11.5.html">
  
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                    测试一个值是否实现了某个接口
            
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<li class="chapter " data-level="1.2.3.8.6" data-path="../../the-way-to-go/eBook/11.6.html">
  
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                    使用方法集与接口
            
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<li class="chapter " data-level="1.2.3.8.7" data-path="../../the-way-to-go/eBook/11.7.html">
  
  <a href="../../the-way-to-go/eBook/11.7.html">
    
                    
                    第一个例子：使用 Sorter 接口排序
            
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<li class="chapter " data-level="1.2.3.8.8" data-path="../../the-way-to-go/eBook/11.8.html">
  
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                    第二个例子：读和写
            
    </a>
    

    
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<li class="chapter " data-level="1.2.3.8.9" data-path="../../the-way-to-go/eBook/11.9.html">
  
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                    空接口
            
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<li class="chapter " data-level="1.2.3.8.9.1" data-path="../../the-way-to-go/eBook/11.10.html">
  
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                    反射包
            
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<li class="chapter " data-level="1.2.3.8.9.2" data-path="../../the-way-to-go/eBook/11.11.html">
  
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                    Printf 和反射
            
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<li class="chapter " data-level="1.2.3.8.9.3" data-path="../../the-way-to-go/eBook/11.12.html">
  
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                    接口与动态类型
            
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<li class="chapter " data-level="1.2.3.8.9.4" data-path="../../the-way-to-go/eBook/11.13.html">
  
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                    总结：Go 中的面向对象
            
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<li class="chapter " data-level="1.2.3.8.9.5" data-path="../../the-way-to-go/eBook/11.14.html">
  
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                    结构体、集合和高阶函数
            
    </a>
    

    
</li>


    </ul>
    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.2.4" >
  
      <span>
            
                    
                    第三部分：Go 高级编程
            
    </span>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.2.4.1" data-path="../../the-way-to-go/eBook/12.0.html">
  
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                    读写数据
            
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<li class="chapter " data-level="1.2.4.1.1" data-path="../../the-way-to-go/eBook/12.1.html">
  
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                    读取用户的输入
            
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<li class="chapter " data-level="1.2.4.1.2" data-path="../../the-way-to-go/eBook/12.2.html">
  
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                    文件读写
            
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<li class="chapter " data-level="1.2.4.1.3" data-path="../../the-way-to-go/eBook/12.3.html">
  
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                    文件拷贝
            
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<li class="chapter " data-level="1.2.4.1.4" data-path="../../the-way-to-go/eBook/12.4.html">
  
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                    从命令行读取参数
            
    </a>
    

    
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<li class="chapter " data-level="1.2.4.1.5" data-path="../../the-way-to-go/eBook/12.5.html">
  
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                    用 buffer 读取文件
            
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<li class="chapter " data-level="1.2.4.1.6" data-path="../../the-way-to-go/eBook/12.6.html">
  
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                    用切片读写文件
            
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<li class="chapter " data-level="1.2.4.1.7" data-path="../../the-way-to-go/eBook/12.7.html">
  
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                    用 defer 关闭文件
            
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<li class="chapter " data-level="1.2.4.1.8" data-path="../../the-way-to-go/eBook/12.8.html">
  
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                    使用接口的实际例子：fmt.Fprintf
            
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<li class="chapter " data-level="1.2.4.1.9" data-path="../../the-way-to-go/eBook/12.9.html">
  
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                    格式化 JSON 数据
            
    </a>
    

    
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<li class="chapter " data-level="1.2.4.1.10" data-path="../../the-way-to-go/eBook/12.10.html">
  
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                    XML 数据格式
            
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<li class="chapter " data-level="1.2.4.1.11" data-path="../../the-way-to-go/eBook/12.11.html">
  
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                    用 Gob 传输数据
            
    </a>
    

    
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<li class="chapter " data-level="1.2.4.1.12" data-path="../../the-way-to-go/eBook/12.12.html">
  
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                    Go 中的密码学
            
    </a>
    

    
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    </ul>
    
</li>

<li class="chapter " data-level="1.2.4.2" data-path="../../the-way-to-go/eBook/13.0.html">
  
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                    错误处理与测试
            
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<li class="chapter " data-level="1.2.4.2.1" data-path="../../the-way-to-go/eBook/13.1.html">
  
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                    错误处理
            
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<li class="chapter " data-level="1.2.4.2.2" data-path="../../the-way-to-go/eBook/13.2.html">
  
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                    运行时异常和 panic
            
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<li class="chapter " data-level="1.2.4.2.3" data-path="../../the-way-to-go/eBook/13.3.html">
  
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                    从 panic 中恢复（Recover）
            
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</li>

<li class="chapter " data-level="1.2.4.2.4" data-path="../../the-way-to-go/eBook/13.4.html">
  
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                    自定义包中的错误处理和 panicking
            
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</li>

<li class="chapter " data-level="1.2.4.2.5" data-path="../../the-way-to-go/eBook/13.5.html">
  
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                    一种用闭包处理错误的模式
            
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<li class="chapter " data-level="1.2.4.2.6" data-path="../../the-way-to-go/eBook/13.6.html">
  
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                    启动外部命令和程序
            
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<li class="chapter " data-level="1.2.4.2.7" data-path="../../the-way-to-go/eBook/13.7.html">
  
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                    Go 中的单元测试和基准测试
            
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<li class="chapter " data-level="1.2.4.2.8" data-path="../../the-way-to-go/eBook/13.8.html">
  
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                    测试的具体例子
            
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<li class="chapter " data-level="1.2.4.2.9" data-path="../../the-way-to-go/eBook/13.9.html">
  
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                    用（测试数据）表驱动测试
            
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<li class="chapter " data-level="1.2.4.2.10" data-path="../../the-way-to-go/eBook/13.10.html">
  
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                    性能调试：分析并优化 Go 程序
            
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</li>


    </ul>
    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3" data-path="../../gopl/">
  
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                    Go语言圣经
            
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<li class="chapter " data-level="1.3.1" data-path="../../gopl/preface.html">
  
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                    前言
            
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<li class="chapter " data-level="1.3.1.1" data-path="../../gopl/ch0/ch0-01.html">
  
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                    Go语言起源
            
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<li class="chapter " data-level="1.3.1.2" data-path="../../gopl/ch0/ch0-02.html">
  
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                    Go语言项目
            
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<li class="chapter " data-level="1.3.1.3" data-path="../../gopl/ch0/ch0-03.html">
  
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                    本书的组织
            
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<li class="chapter " data-level="1.3.1.4" data-path="../../gopl/ch0/ch0-04.html">
  
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                    更多的信息
            
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<li class="chapter " data-level="1.3.1.5" data-path="../../gopl/ch0/ch0-05.html">
  
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                    致谢
            
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<li class="chapter " data-level="1.3.2" data-path="../../gopl/ch1/ch1.html">
  
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                    入门
            
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<li class="chapter " data-level="1.3.2.1" data-path="../../gopl/ch1/ch1-01.html">
  
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                    Hello, World
            
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<li class="chapter " data-level="1.3.2.2" data-path="../../gopl/ch1/ch1-02.html">
  
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                    命令行参数
            
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<li class="chapter " data-level="1.3.2.3" data-path="../../gopl/ch1/ch1-03.html">
  
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                    查找重复的行
            
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<li class="chapter " data-level="1.3.2.4" data-path="../../gopl/ch1/ch1-04.html">
  
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                    GIF动画
            
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<li class="chapter " data-level="1.3.2.5" data-path="../../gopl/ch1/ch1-05.html">
  
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                    获取URL
            
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<li class="chapter " data-level="1.3.2.6" data-path="../../gopl/ch1/ch1-06.html">
  
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                    并发获取多个URL
            
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<li class="chapter " data-level="1.3.2.7" data-path="../../gopl/ch1/ch1-07.html">
  
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                    Web服务
            
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<li class="chapter " data-level="1.3.2.8" data-path="../../gopl/ch1/ch1-08.html">
  
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                    本章要点
            
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    </ul>
    
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<li class="chapter " data-level="1.3.3" data-path="../../gopl/ch2/ch2.html">
  
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                    程序结构
            
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<li class="chapter " data-level="1.3.3.1" data-path="../../gopl/ch2/ch2-01.html">
  
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                    命名
            
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<li class="chapter " data-level="1.3.3.2" data-path="../../gopl/ch2/ch2-02.html">
  
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                    声明
            
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<li class="chapter " data-level="1.3.3.3" data-path="../../gopl/ch2/ch2-03.html">
  
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                    变量
            
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<li class="chapter " data-level="1.3.3.4" data-path="../../gopl/ch2/ch2-04.html">
  
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                    赋值
            
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<li class="chapter " data-level="1.3.3.5" data-path="../../gopl/ch2/ch2-05.html">
  
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                    类型
            
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<li class="chapter " data-level="1.3.3.6" data-path="../../gopl/ch2/ch2-06.html">
  
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                    包和文件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.3.7" data-path="../../gopl/ch2/ch2-07.html">
  
  <a href="../../gopl/ch2/ch2-07.html">
    
                    
                    作用域
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.4" data-path="../../gopl/ch3/ch3.html">
  
  <a href="../../gopl/ch3/ch3.html">
    
                    
                    基础数据类型
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.4.1" data-path="../../gopl/ch3/ch3-01.html">
  
  <a href="../../gopl/ch3/ch3-01.html">
    
                    
                    整型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.2" data-path="../../gopl/ch3/ch3-02.html">
  
  <a href="../../gopl/ch3/ch3-02.html">
    
                    
                    浮点数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.3" data-path="../../gopl/ch3/ch3-03.html">
  
  <a href="../../gopl/ch3/ch3-03.html">
    
                    
                    复数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.4" data-path="../../gopl/ch3/ch3-04.html">
  
  <a href="../../gopl/ch3/ch3-04.html">
    
                    
                    布尔型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.5" data-path="../../gopl/ch3/ch3-05.html">
  
  <a href="../../gopl/ch3/ch3-05.html">
    
                    
                    字符串
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.6" data-path="../../gopl/ch3/ch3-06.html">
  
  <a href="../../gopl/ch3/ch3-06.html">
    
                    
                    常量
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.5" data-path="../../gopl/ch4/ch4.html">
  
  <a href="../../gopl/ch4/ch4.html">
    
                    
                    复合数据类型
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.5.1" data-path="../../gopl/ch4/ch4-01.html">
  
  <a href="../../gopl/ch4/ch4-01.html">
    
                    
                    数组
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.2" data-path="../../gopl/ch4/ch4-02.html">
  
  <a href="../../gopl/ch4/ch4-02.html">
    
                    
                    Slice
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.3" data-path="../../gopl/ch4/ch4-03.html">
  
  <a href="../../gopl/ch4/ch4-03.html">
    
                    
                    Map
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.4" data-path="../../gopl/ch4/ch4-04.html">
  
  <a href="../../gopl/ch4/ch4-04.html">
    
                    
                    结构体
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.5" data-path="../../gopl/ch4/ch4-05.html">
  
  <a href="../../gopl/ch4/ch4-05.html">
    
                    
                    JSON
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.6" data-path="../../gopl/ch4/ch4-06.html">
  
  <a href="../../gopl/ch4/ch4-06.html">
    
                    
                    文本和HTML模板
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.6" data-path="../../gopl/ch5/ch5.html">
  
  <a href="../../gopl/ch5/ch5.html">
    
                    
                    函数
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.6.1" data-path="../../gopl/ch5/ch5-01.html">
  
  <a href="../../gopl/ch5/ch5-01.html">
    
                    
                    函数声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.2" data-path="../../gopl/ch5/ch5-02.html">
  
  <a href="../../gopl/ch5/ch5-02.html">
    
                    
                    递归
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.3" data-path="../../gopl/ch5/ch5-03.html">
  
  <a href="../../gopl/ch5/ch5-03.html">
    
                    
                    多返回值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.4" data-path="../../gopl/ch5/ch5-04.html">
  
  <a href="../../gopl/ch5/ch5-04.html">
    
                    
                    错误
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.5" data-path="../../gopl/ch5/ch5-05.html">
  
  <a href="../../gopl/ch5/ch5-05.html">
    
                    
                    函数值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.6" data-path="../../gopl/ch5/ch5-06.html">
  
  <a href="../../gopl/ch5/ch5-06.html">
    
                    
                    匿名函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.7" data-path="../../gopl/ch5/ch5-07.html">
  
  <a href="../../gopl/ch5/ch5-07.html">
    
                    
                    可变参数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.8" data-path="../../gopl/ch5/ch5-08.html">
  
  <a href="../../gopl/ch5/ch5-08.html">
    
                    
                    Deferred函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.9" data-path="../../gopl/ch5/ch5-09.html">
  
  <a href="../../gopl/ch5/ch5-09.html">
    
                    
                    Panic异常
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.10" data-path="../../gopl/ch5/ch5-10.html">
  
  <a href="../../gopl/ch5/ch5-10.html">
    
                    
                    Recover捕获异常
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.7" data-path="../../gopl/ch6/ch6.html">
  
  <a href="../../gopl/ch6/ch6.html">
    
                    
                    方法
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.7.1" data-path="../../gopl/ch6/ch6-01.html">
  
  <a href="../../gopl/ch6/ch6-01.html">
    
                    
                    方法声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.2" data-path="../../gopl/ch6/ch6-02.html">
  
  <a href="../../gopl/ch6/ch6-02.html">
    
                    
                    基于指针对象的方法
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.3" data-path="../../gopl/ch6/ch6-03.html">
  
  <a href="../../gopl/ch6/ch6-03.html">
    
                    
                    通过嵌入结构体来扩展类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.4" data-path="../../gopl/ch6/ch6-04.html">
  
  <a href="../../gopl/ch6/ch6-04.html">
    
                    
                    方法值和方法表达式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.5" data-path="../../gopl/ch6/ch6-05.html">
  
  <a href="../../gopl/ch6/ch6-05.html">
    
                    
                    示例: Bit数组
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.6" data-path="../../gopl/ch6/ch6-06.html">
  
  <a href="../../gopl/ch6/ch6-06.html">
    
                    
                    封装
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.8" data-path="../../gopl/ch7/ch7.html">
  
  <a href="../../gopl/ch7/ch7.html">
    
                    
                    接口
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.8.1" data-path="../../gopl/ch7/ch7-01.html">
  
  <a href="../../gopl/ch7/ch7-01.html">
    
                    
                    接口是合约
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.2" data-path="../../gopl/ch7/ch7-02.html">
  
  <a href="../../gopl/ch7/ch7-02.html">
    
                    
                    接口类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.3" data-path="../../gopl/ch7/ch7-03.html">
  
  <a href="../../gopl/ch7/ch7-03.html">
    
                    
                    实现接口的条件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.4" data-path="../../gopl/ch7/ch7-04.html">
  
  <a href="../../gopl/ch7/ch7-04.html">
    
                    
                    flag.Value接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.5" data-path="../../gopl/ch7/ch7-05.html">
  
  <a href="../../gopl/ch7/ch7-05.html">
    
                    
                    接口值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.6" data-path="../../gopl/ch7/ch7-06.html">
  
  <a href="../../gopl/ch7/ch7-06.html">
    
                    
                    sort.Interface接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.7" data-path="../../gopl/ch7/ch7-07.html">
  
  <a href="../../gopl/ch7/ch7-07.html">
    
                    
                    http.Handler接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.8" data-path="../../gopl/ch7/ch7-08.html">
  
  <a href="../../gopl/ch7/ch7-08.html">
    
                    
                    error接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.9" data-path="../../gopl/ch7/ch7-09.html">
  
  <a href="../../gopl/ch7/ch7-09.html">
    
                    
                    示例: 表达式求值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.10" data-path="../../gopl/ch7/ch7-10.html">
  
  <a href="../../gopl/ch7/ch7-10.html">
    
                    
                    类型断言
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.11" data-path="../../gopl/ch7/ch7-11.html">
  
  <a href="../../gopl/ch7/ch7-11.html">
    
                    
                    基于类型断言识别错误类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.12" data-path="../../gopl/ch7/ch7-12.html">
  
  <a href="../../gopl/ch7/ch7-12.html">
    
                    
                    通过类型断言查询接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.13" data-path="../../gopl/ch7/ch7-13.html">
  
  <a href="../../gopl/ch7/ch7-13.html">
    
                    
                    类型分支
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.14" data-path="../../gopl/ch7/ch7-14.html">
  
  <a href="../../gopl/ch7/ch7-14.html">
    
                    
                    示例: 基于标记的XML解码
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.15" data-path="../../gopl/ch7/ch7-15.html">
  
  <a href="../../gopl/ch7/ch7-15.html">
    
                    
                    补充几点
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.9" data-path="../../gopl/ch8/ch8.html">
  
  <a href="../../gopl/ch8/ch8.html">
    
                    
                    Goroutines和Channels
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.9.1" data-path="../../gopl/ch8/ch8-01.html">
  
  <a href="../../gopl/ch8/ch8-01.html">
    
                    
                    Goroutines
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.2" data-path="../../gopl/ch8/ch8-02.html">
  
  <a href="../../gopl/ch8/ch8-02.html">
    
                    
                    示例: 并发的Clock服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.3" data-path="../../gopl/ch8/ch8-03.html">
  
  <a href="../../gopl/ch8/ch8-03.html">
    
                    
                    示例: 并发的Echo服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.4" data-path="../../gopl/ch8/ch8-04.html">
  
  <a href="../../gopl/ch8/ch8-04.html">
    
                    
                    Channels
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.5" data-path="../../gopl/ch8/ch8-05.html">
  
  <a href="../../gopl/ch8/ch8-05.html">
    
                    
                    并发的循环
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.6" data-path="../../gopl/ch8/ch8-06.html">
  
  <a href="../../gopl/ch8/ch8-06.html">
    
                    
                    示例: 并发的Web爬虫
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.7" data-path="../../gopl/ch8/ch8-07.html">
  
  <a href="../../gopl/ch8/ch8-07.html">
    
                    
                    基于select的多路复用
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.8" data-path="../../gopl/ch8/ch8-08.html">
  
  <a href="../../gopl/ch8/ch8-08.html">
    
                    
                    示例: 并发的目录遍历
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.9" data-path="../../gopl/ch8/ch8-09.html">
  
  <a href="../../gopl/ch8/ch8-09.html">
    
                    
                    并发的退出
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.10" data-path="../../gopl/ch8/ch8-10.html">
  
  <a href="../../gopl/ch8/ch8-10.html">
    
                    
                    示例: 聊天服务
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.10" data-path="../../gopl/ch9/ch9.html">
  
  <a href="../../gopl/ch9/ch9.html">
    
                    
                    基于共享变量的并发
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.10.1" data-path="../../gopl/ch9/ch9-01.html">
  
  <a href="../../gopl/ch9/ch9-01.html">
    
                    
                    竞争条件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.2" data-path="../../gopl/ch9/ch9-02.html">
  
  <a href="../../gopl/ch9/ch9-02.html">
    
                    
                    sync.Mutex互斥锁
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.3" data-path="../../gopl/ch9/ch9-03.html">
  
  <a href="../../gopl/ch9/ch9-03.html">
    
                    
                    sync.RWMutex读写锁
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.4" data-path="../../gopl/ch9/ch9-04.html">
  
  <a href="../../gopl/ch9/ch9-04.html">
    
                    
                    内存同步
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.5" data-path="../../gopl/ch9/ch9-05.html">
  
  <a href="../../gopl/ch9/ch9-05.html">
    
                    
                    sync.Once惰性初始化
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.6" data-path="../../gopl/ch9/ch9-06.html">
  
  <a href="../../gopl/ch9/ch9-06.html">
    
                    
                    竞争条件检测
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.7" data-path="../../gopl/ch9/ch9-07.html">
  
  <a href="../../gopl/ch9/ch9-07.html">
    
                    
                    示例: 并发的非阻塞缓存
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.8" data-path="../../gopl/ch9/ch9-08.html">
  
  <a href="../../gopl/ch9/ch9-08.html">
    
                    
                    Goroutines和线程
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.11" data-path="../../gopl/ch10/ch10.html">
  
  <a href="../../gopl/ch10/ch10.html">
    
                    
                    包和工具
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.11.1" data-path="../../gopl/ch10/ch10-01.html">
  
  <a href="../../gopl/ch10/ch10-01.html">
    
                    
                    包简介
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.2" data-path="../../gopl/ch10/ch10-02.html">
  
  <a href="../../gopl/ch10/ch10-02.html">
    
                    
                    导入路径
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.3" data-path="../../gopl/ch10/ch10-03.html">
  
  <a href="../../gopl/ch10/ch10-03.html">
    
                    
                    包声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.4" data-path="../../gopl/ch10/ch10-04.html">
  
  <a href="../../gopl/ch10/ch10-04.html">
    
                    
                    导入声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.5" data-path="../../gopl/ch10/ch10-05.html">
  
  <a href="../../gopl/ch10/ch10-05.html">
    
                    
                    包的匿名导入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.6" data-path="../../gopl/ch10/ch10-06.html">
  
  <a href="../../gopl/ch10/ch10-06.html">
    
                    
                    包和命名
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.7" data-path="../../gopl/ch10/ch10-07.html">
  
  <a href="../../gopl/ch10/ch10-07.html">
    
                    
                    工具
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.12" data-path="../../gopl/ch11/ch11.html">
  
  <a href="../../gopl/ch11/ch11.html">
    
                    
                    测试
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.12.1" data-path="../../gopl/ch11/ch11-01.html">
  
  <a href="../../gopl/ch11/ch11-01.html">
    
                    
                    go test
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.2" data-path="../../gopl/ch11/ch11-02.html">
  
  <a href="../../gopl/ch11/ch11-02.html">
    
                    
                    测试函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.3" data-path="../../gopl/ch11/ch11-03.html">
  
  <a href="../../gopl/ch11/ch11-03.html">
    
                    
                    测试覆盖率
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.4" data-path="../../gopl/ch11/ch11-04.html">
  
  <a href="../../gopl/ch11/ch11-04.html">
    
                    
                    基准测试
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.5" data-path="../../gopl/ch11/ch11-05.html">
  
  <a href="../../gopl/ch11/ch11-05.html">
    
                    
                    剖析
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.6" data-path="../../gopl/ch11/ch11-06.html">
  
  <a href="../../gopl/ch11/ch11-06.html">
    
                    
                    示例函数
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.13" data-path="../../gopl/ch12/ch12.html">
  
  <a href="../../gopl/ch12/ch12.html">
    
                    
                    反射
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.13.1" data-path="../../gopl/ch12/ch12-01.html">
  
  <a href="../../gopl/ch12/ch12-01.html">
    
                    
                    为何需要反射?
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.2" data-path="../../gopl/ch12/ch12-02.html">
  
  <a href="../../gopl/ch12/ch12-02.html">
    
                    
                    reflect.Type和reflect.Value
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.3" data-path="../../gopl/ch12/ch12-03.html">
  
  <a href="../../gopl/ch12/ch12-03.html">
    
                    
                    Display递归打印
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.4" data-path="../../gopl/ch12/ch12-04.html">
  
  <a href="../../gopl/ch12/ch12-04.html">
    
                    
                    示例: 编码S表达式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.5" data-path="../../gopl/ch12/ch12-05.html">
  
  <a href="../../gopl/ch12/ch12-05.html">
    
                    
                    通过reflect.Value修改值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.6" data-path="../../gopl/ch12/ch12-06.html">
  
  <a href="../../gopl/ch12/ch12-06.html">
    
                    
                    示例: 解码S表达式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.7" data-path="../../gopl/ch12/ch12-07.html">
  
  <a href="../../gopl/ch12/ch12-07.html">
    
                    
                    获取结构体字段标签
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.8" data-path="../../gopl/ch12/ch12-08.html">
  
  <a href="../../gopl/ch12/ch12-08.html">
    
                    
                    显示一个类型的方法集
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.9" data-path="../../gopl/ch12/ch12-09.html">
  
  <a href="../../gopl/ch12/ch12-09.html">
    
                    
                    几点忠告
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.14" data-path="../../gopl/ch13/ch13.html">
  
  <a href="../../gopl/ch13/ch13.html">
    
                    
                    底层编程
            
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<li class="chapter " data-level="1.3.14.1" data-path="../../gopl/ch13/ch13-01.html">
  
  <a href="../../gopl/ch13/ch13-01.html">
    
                    
                    unsafe.Sizeof, Alignof 和 Offsetof
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.14.2" data-path="../../gopl/ch13/ch13-02.html">
  
  <a href="../../gopl/ch13/ch13-02.html">
    
                    
                    unsafe.Pointer
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.14.3" data-path="../../gopl/ch13/ch13-03.html">
  
  <a href="../../gopl/ch13/ch13-03.html">
    
                    
                    示例: 深度相等判断
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.14.4" data-path="../../gopl/ch13/ch13-04.html">
  
  <a href="../../gopl/ch13/ch13-04.html">
    
                    
                    通过cgo调用C代码
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.14.5" data-path="../../gopl/ch13/ch13-05.html">
  
  <a href="../../gopl/ch13/ch13-05.html">
    
                    
                    几点忠告
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.15" data-path="../../gopl/appendix/appendix.html">
  
  <a href="../../gopl/appendix/appendix.html">
    
                    
                    附录
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.15.1" data-path="../../gopl/appendix/appendix-a-errata.html">
  
  <a href="../../gopl/appendix/appendix-a-errata.html">
    
                    
                    附录A：原文勘误
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.15.2" data-path="../../gopl/appendix/appendix-b-author.html">
  
  <a href="../../gopl/appendix/appendix-b-author.html">
    
                    
                    附录B：作者译者
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.15.3" data-path="../../gopl/appendix/appendix-c-cpoyright.html">
  
  <a href="../../gopl/appendix/appendix-c-cpoyright.html">
    
                    
                    附录C：译文授权
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.15.4" data-path="../../gopl/appendix/appendix-d-translations.html">
  
  <a href="../../gopl/appendix/appendix-d-translations.html">
    
                    
                    附录D：其它语言
            
    </a>
    

    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4" data-path="../../build-web-application-with-golang/">
  
  <a href="../../build-web-application-with-golang/">
    
                    
                    Go Web 编程
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.1" data-path="../../build-web-application-with-golang/01.0.html">
  
  <a href="../../build-web-application-with-golang/01.0.html">
    
                    
                    Go环境配置
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.1.1" data-path="../../build-web-application-with-golang/01.1.html">
  
  <a href="../../build-web-application-with-golang/01.1.html">
    
                    
                    Go安装
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.1.2" data-path="../../build-web-application-with-golang/01.2.html">
  
  <a href="../../build-web-application-with-golang/01.2.html">
    
                    
                    GOPATH 与工作空间
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.1.3" data-path="../../build-web-application-with-golang/01.3.html">
  
  <a href="../../build-web-application-with-golang/01.3.html">
    
                    
                    Go 命令
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.1.4" data-path="../../build-web-application-with-golang/01.4.html">
  
  <a href="../../build-web-application-with-golang/01.4.html">
    
                    
                    Go开发工具
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.1.5" data-path="../../build-web-application-with-golang/01.5.html">
  
  <a href="../../build-web-application-with-golang/01.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.2" data-path="../../build-web-application-with-golang/02.0.html">
  
  <a href="../../build-web-application-with-golang/02.0.html">
    
                    
                    Go语言基础
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.2.1" data-path="../../build-web-application-with-golang/02.1.html">
  
  <a href="../../build-web-application-with-golang/02.1.html">
    
                    
                    你好，Go
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.2" data-path="../../build-web-application-with-golang/02.2.html">
  
  <a href="../../build-web-application-with-golang/02.2.html">
    
                    
                    Go基础
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.3" data-path="../../build-web-application-with-golang/02.3.html">
  
  <a href="../../build-web-application-with-golang/02.3.html">
    
                    
                    流程和函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.4" data-path="../../build-web-application-with-golang/02.4.html">
  
  <a href="../../build-web-application-with-golang/02.4.html">
    
                    
                    struct
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.5" data-path="../../build-web-application-with-golang/02.5.html">
  
  <a href="../../build-web-application-with-golang/02.5.html">
    
                    
                    面向对象
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.6" data-path="../../build-web-application-with-golang/02.6.html">
  
  <a href="../../build-web-application-with-golang/02.6.html">
    
                    
                    interface
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.7" data-path="../../build-web-application-with-golang/02.7.html">
  
  <a href="../../build-web-application-with-golang/02.7.html">
    
                    
                    并发
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.8" data-path="../../build-web-application-with-golang/02.8.html">
  
  <a href="../../build-web-application-with-golang/02.8.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.3" data-path="../../build-web-application-with-golang/03.0.html">
  
  <a href="../../build-web-application-with-golang/03.0.html">
    
                    
                    Web基础
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.3.1" data-path="../../build-web-application-with-golang/03.1.html">
  
  <a href="../../build-web-application-with-golang/03.1.html">
    
                    
                    web工作方式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.3.2" data-path="../../build-web-application-with-golang/03.2.html">
  
  <a href="../../build-web-application-with-golang/03.2.html">
    
                    
                    Go搭建一个简单的web服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.3.3" data-path="../../build-web-application-with-golang/03.3.html">
  
  <a href="../../build-web-application-with-golang/03.3.html">
    
                    
                    Go如何使得web工作
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.3.4" data-path="../../build-web-application-with-golang/03.4.html">
  
  <a href="../../build-web-application-with-golang/03.4.html">
    
                    
                    Go的http包详解
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.3.5" data-path="../../build-web-application-with-golang/03.5.html">
  
  <a href="../../build-web-application-with-golang/03.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.4" data-path="../../build-web-application-with-golang/04.0.html">
  
  <a href="../../build-web-application-with-golang/04.0.html">
    
                    
                    表单
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.4.1" data-path="../../build-web-application-with-golang/04.1.html">
  
  <a href="../../build-web-application-with-golang/04.1.html">
    
                    
                    处理表单的输入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.2" data-path="../../build-web-application-with-golang/04.2.html">
  
  <a href="../../build-web-application-with-golang/04.2.html">
    
                    
                    验证表单的输入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.3" data-path="../../build-web-application-with-golang/04.3.html">
  
  <a href="../../build-web-application-with-golang/04.3.html">
    
                    
                    预防跨站脚本
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.4" data-path="../../build-web-application-with-golang/04.4.html">
  
  <a href="../../build-web-application-with-golang/04.4.html">
    
                    
                    防止多次递交表单
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.5" data-path="../../build-web-application-with-golang/04.5.html">
  
  <a href="../../build-web-application-with-golang/04.5.html">
    
                    
                    处理文件上传
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.6" data-path="../../build-web-application-with-golang/04.6.html">
  
  <a href="../../build-web-application-with-golang/04.6.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.5" data-path="../../build-web-application-with-golang/05.0.html">
  
  <a href="../../build-web-application-with-golang/05.0.html">
    
                    
                    访问数据库
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.5.1" data-path="../../build-web-application-with-golang/05.1.html">
  
  <a href="../../build-web-application-with-golang/05.1.html">
    
                    
                    database/sql接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.2" data-path="../../build-web-application-with-golang/05.2.html">
  
  <a href="../../build-web-application-with-golang/05.2.html">
    
                    
                    使用MySQL数据库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.3" data-path="../../build-web-application-with-golang/05.3.html">
  
  <a href="../../build-web-application-with-golang/05.3.html">
    
                    
                    使用SQLite数据库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.4" data-path="../../build-web-application-with-golang/05.4.html">
  
  <a href="../../build-web-application-with-golang/05.4.html">
    
                    
                    使用PostgreSQL数据库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.5" data-path="../../build-web-application-with-golang/05.5.html">
  
  <a href="../../build-web-application-with-golang/05.5.html">
    
                    
                    使用beedb库进行ORM开发
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.6" data-path="../../build-web-application-with-golang/05.6.html">
  
  <a href="../../build-web-application-with-golang/05.6.html">
    
                    
                    NOSQL数据库操作
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.7" data-path="../../build-web-application-with-golang/05.7.html">
  
  <a href="../../build-web-application-with-golang/05.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.6" data-path="../../build-web-application-with-golang/06.0.html">
  
  <a href="../../build-web-application-with-golang/06.0.html">
    
                    
                    session和数据存储
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.6.1" data-path="../../build-web-application-with-golang/06.1.html">
  
  <a href="../../build-web-application-with-golang/06.1.html">
    
                    
                    session和cookie
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.6.2" data-path="../../build-web-application-with-golang/06.2.html">
  
  <a href="../../build-web-application-with-golang/06.2.html">
    
                    
                    Go如何使用session
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.6.3" data-path="../../build-web-application-with-golang/06.3.html">
  
  <a href="../../build-web-application-with-golang/06.3.html">
    
                    
                    session存储
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.6.4" data-path="../../build-web-application-with-golang/06.4.html">
  
  <a href="../../build-web-application-with-golang/06.4.html">
    
                    
                    预防session劫持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.6.5" data-path="../../build-web-application-with-golang/06.5.html">
  
  <a href="../../build-web-application-with-golang/06.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.7" data-path="../../build-web-application-with-golang/07.0.html">
  
  <a href="../../build-web-application-with-golang/07.0.html">
    
                    
                    文本文件处理
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.7.1" data-path="../../build-web-application-with-golang/07.1.html">
  
  <a href="../../build-web-application-with-golang/07.1.html">
    
                    
                    XML处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.2" data-path="../../build-web-application-with-golang/07.2.html">
  
  <a href="../../build-web-application-with-golang/07.2.html">
    
                    
                    JSON处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.3" data-path="../../build-web-application-with-golang/07.3.html">
  
  <a href="../../build-web-application-with-golang/07.3.html">
    
                    
                    正则处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.4" data-path="../../build-web-application-with-golang/07.4.html">
  
  <a href="../../build-web-application-with-golang/07.4.html">
    
                    
                    模板处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.5" data-path="../../build-web-application-with-golang/07.5.html">
  
  <a href="../../build-web-application-with-golang/07.5.html">
    
                    
                    文件操作
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.6" data-path="../../build-web-application-with-golang/07.6.html">
  
  <a href="../../build-web-application-with-golang/07.6.html">
    
                    
                    字符串处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.7" data-path="../../build-web-application-with-golang/07.7.html">
  
  <a href="../../build-web-application-with-golang/07.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.8" data-path="../../build-web-application-with-golang/08.0.html">
  
  <a href="../../build-web-application-with-golang/08.0.html">
    
                    
                    Web服务
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.8.1" data-path="../../build-web-application-with-golang/08.1.html">
  
  <a href="../../build-web-application-with-golang/08.1.html">
    
                    
                    Socket编程
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.2" data-path="../../build-web-application-with-golang/08.2.html">
  
  <a href="../../build-web-application-with-golang/08.2.html">
    
                    
                    WebSocket
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.3" data-path="../../build-web-application-with-golang/08.3.html">
  
  <a href="../../build-web-application-with-golang/08.3.html">
    
                    
                    REST
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.4" data-path="../../build-web-application-with-golang/08.4.html">
  
  <a href="../../build-web-application-with-golang/08.4.html">
    
                    
                    RPC
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.5" data-path="../../build-web-application-with-golang/08.5.html">
  
  <a href="../../build-web-application-with-golang/08.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.9" data-path="../../build-web-application-with-golang/09.0.html">
  
  <a href="../../build-web-application-with-golang/09.0.html">
    
                    
                    安全与加密
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.9.1" data-path="../../build-web-application-with-golang/09.1.html">
  
  <a href="../../build-web-application-with-golang/09.1.html">
    
                    
                    预防CSRF攻击
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.2" data-path="../../build-web-application-with-golang/09.2.html">
  
  <a href="../../build-web-application-with-golang/09.2.html">
    
                    
                    确保输入过滤
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.3" data-path="../../build-web-application-with-golang/09.3.html">
  
  <a href="../../build-web-application-with-golang/09.3.html">
    
                    
                    避免XSS攻击
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.4" data-path="../../build-web-application-with-golang/09.4.html">
  
  <a href="../../build-web-application-with-golang/09.4.html">
    
                    
                    避免SQL注入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.5" data-path="../../build-web-application-with-golang/09.5.html">
  
  <a href="../../build-web-application-with-golang/09.5.html">
    
                    
                    存储密码
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.6" data-path="../../build-web-application-with-golang/09.6.html">
  
  <a href="../../build-web-application-with-golang/09.6.html">
    
                    
                    加密和解密数据
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.7" data-path="../../build-web-application-with-golang/09.7.html">
  
  <a href="../../build-web-application-with-golang/09.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.10" data-path="../../build-web-application-with-golang/10.0.html">
  
  <a href="../../build-web-application-with-golang/10.0.html">
    
                    
                    国际化和本地化
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.10.1" data-path="../../build-web-application-with-golang/10.1.html">
  
  <a href="../../build-web-application-with-golang/10.1.html">
    
                    
                    设置默认地区
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.10.2" data-path="../../build-web-application-with-golang/10.2.html">
  
  <a href="../../build-web-application-with-golang/10.2.html">
    
                    
                    本地化资源
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.10.3" data-path="../../build-web-application-with-golang/10.3.html">
  
  <a href="../../build-web-application-with-golang/10.3.html">
    
                    
                    国际化站点
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.10.4" data-path="../../build-web-application-with-golang/10.4.html">
  
  <a href="../../build-web-application-with-golang/10.4.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.11" data-path="../../build-web-application-with-golang/11.0.html">
  
  <a href="../../build-web-application-with-golang/11.0.html">
    
                    
                    错误处理，调试和测试
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.11.1" data-path="../../build-web-application-with-golang/11.1.html">
  
  <a href="../../build-web-application-with-golang/11.1.html">
    
                    
                    错误处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.11.2" data-path="../../build-web-application-with-golang/11.2.html">
  
  <a href="../../build-web-application-with-golang/11.2.html">
    
                    
                    使用GDB调试
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.11.3" data-path="../../build-web-application-with-golang/11.3.html">
  
  <a href="../../build-web-application-with-golang/11.3.html">
    
                    
                    Go怎么写测试用例
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.11.4" data-path="../../build-web-application-with-golang/11.4.html">
  
  <a href="../../build-web-application-with-golang/11.4.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.12" data-path="../../build-web-application-with-golang/12.0.html">
  
  <a href="../../build-web-application-with-golang/12.0.html">
    
                    
                    部署与维护
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.12.1" data-path="../../build-web-application-with-golang/12.1.html">
  
  <a href="../../build-web-application-with-golang/12.1.html">
    
                    
                    应用日志
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.12.2" data-path="../../build-web-application-with-golang/12.2.html">
  
  <a href="../../build-web-application-with-golang/12.2.html">
    
                    
                    网站错误处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.12.3" data-path="../../build-web-application-with-golang/12.3.html">
  
  <a href="../../build-web-application-with-golang/12.3.html">
    
                    
                    应用部署
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.12.4" data-path="../../build-web-application-with-golang/12.4.html">
  
  <a href="../../build-web-application-with-golang/12.4.html">
    
                    
                    备份和恢复
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.12.5" data-path="../../build-web-application-with-golang/12.5.html">
  
  <a href="../../build-web-application-with-golang/12.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.13" data-path="../../build-web-application-with-golang/13.0.html">
  
  <a href="../../build-web-application-with-golang/13.0.html">
    
                    
                    如何设计一个Web框架
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.13.1" data-path="../../build-web-application-with-golang/13.1.html">
  
  <a href="../../build-web-application-with-golang/13.1.html">
    
                    
                    项目规划
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.2" data-path="../../build-web-application-with-golang/13.2.html">
  
  <a href="../../build-web-application-with-golang/13.2.html">
    
                    
                    自定义路由器设计
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.3" data-path="../../build-web-application-with-golang/13.3.html">
  
  <a href="../../build-web-application-with-golang/13.3.html">
    
                    
                    controller设计
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.4" data-path="../../build-web-application-with-golang/13.4.html">
  
  <a href="../../build-web-application-with-golang/13.4.html">
    
                    
                    日志和配置设计
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.5" data-path="../../build-web-application-with-golang/13.5.html">
  
  <a href="../../build-web-application-with-golang/13.5.html">
    
                    
                    实现博客的增删改
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.6" data-path="../../build-web-application-with-golang/13.6.html">
  
  <a href="../../build-web-application-with-golang/13.6.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.14" data-path="../../build-web-application-with-golang/14.0.html">
  
  <a href="../../build-web-application-with-golang/14.0.html">
    
                    
                    扩展Web框架
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.14.1" data-path="../../build-web-application-with-golang/14.1.html">
  
  <a href="../../build-web-application-with-golang/14.1.html">
    
                    
                    静态文件支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.2" data-path="../../build-web-application-with-golang/14.2.html">
  
  <a href="../../build-web-application-with-golang/14.2.html">
    
                    
                    Session支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.3" data-path="../../build-web-application-with-golang/14.3.html">
  
  <a href="../../build-web-application-with-golang/14.3.html">
    
                    
                    表单支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.4" data-path="../../build-web-application-with-golang/14.4.html">
  
  <a href="../../build-web-application-with-golang/14.4.html">
    
                    
                    用户认证
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.5" data-path="../../build-web-application-with-golang/14.5.html">
  
  <a href="../../build-web-application-with-golang/14.5.html">
    
                    
                    多语言支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.6" data-path="../../build-web-application-with-golang/14.6.html">
  
  <a href="../../build-web-application-with-golang/14.6.html">
    
                    
                    pprof支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.7" data-path="../../build-web-application-with-golang/14.7.html">
  
  <a href="../../build-web-application-with-golang/14.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.15" data-path="../../build-web-application-with-golang/ref.html">
  
  <a href="../../build-web-application-with-golang/ref.html">
    
                    
                    参考资料
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5" data-path="../">
  
  <a href="../">
    
                    
                    Go语言高级编程
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.1" data-path="readme.html">
  
  <a href="readme.html">
    
                    
                    第1章 语言基础
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.1.1" data-path="ch1-01-genesis.html">
  
  <a href="ch1-01-genesis.html">
    
                    
                    1.1 Go语言创世纪
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.2" data-path="ch1-02-hello-revolution.html">
  
  <a href="ch1-02-hello-revolution.html">
    
                    
                    1.2 Hello, World 的革命
            
    </a>
    

    
</li>

<li class="chapter active" data-level="1.5.1.3" data-path="ch1-03-array-string-and-slice.html">
  
  <a href="ch1-03-array-string-and-slice.html">
    
                    
                    1.3 数组、字符串和切片
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.4" data-path="ch1-04-func-method-interface.html">
  
  <a href="ch1-04-func-method-interface.html">
    
                    
                    1.4 函数、方法和接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.5" data-path="ch1-05-mem.html">
  
  <a href="ch1-05-mem.html">
    
                    
                    1.5 面向并发的内存模型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.6" data-path="ch1-06-goroutine.html">
  
  <a href="ch1-06-goroutine.html">
    
                    
                    1.6 常见的并发模式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.7" data-path="ch1-07-error-and-panic.html">
  
  <a href="ch1-07-error-and-panic.html">
    
                    
                    1.7 错误和异常
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.8" data-path="ch1-08-ext.html">
  
  <a href="ch1-08-ext.html">
    
                    
                    1.8 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.2" data-path="../ch2-cgo/readme.html">
  
  <a href="../ch2-cgo/readme.html">
    
                    
                    第2章 CGO编程
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.2.1" data-path="../ch2-cgo/ch2-01-hello-cgo.html">
  
  <a href="../ch2-cgo/ch2-01-hello-cgo.html">
    
                    
                    2.1 快速入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.2" data-path="../ch2-cgo/ch2-02-basic.html">
  
  <a href="../ch2-cgo/ch2-02-basic.html">
    
                    
                    2.2 CGO基础
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.3" data-path="../ch2-cgo/ch2-03-cgo-types.html">
  
  <a href="../ch2-cgo/ch2-03-cgo-types.html">
    
                    
                    2.3 类型转换
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.4" data-path="../ch2-cgo/ch2-04-func.html">
  
  <a href="../ch2-cgo/ch2-04-func.html">
    
                    
                    2.4 函数调用
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.5" data-path="../ch2-cgo/ch2-05-internal.html">
  
  <a href="../ch2-cgo/ch2-05-internal.html">
    
                    
                    2.5 内部机制
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.6" data-path="../ch2-cgo/ch2-06-qsort.html">
  
  <a href="../ch2-cgo/ch2-06-qsort.html">
    
                    
                    2.6 实战: 封装qsort
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.7" data-path="../ch2-cgo/ch2-07-memory.html">
  
  <a href="../ch2-cgo/ch2-07-memory.html">
    
                    
                    2.7 CGO内存模型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.8" data-path="../ch2-cgo/ch2-08-class.html">
  
  <a href="../ch2-cgo/ch2-08-class.html">
    
                    
                    2.8 C++类包装
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.9" data-path="../ch2-cgo/ch2-09-static-shared-lib.html">
  
  <a href="../ch2-cgo/ch2-09-static-shared-lib.html">
    
                    
                    2.9 静态库和动态库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.10" data-path="../ch2-cgo/ch2-10-link.html">
  
  <a href="../ch2-cgo/ch2-10-link.html">
    
                    
                    2.10 编译和链接参数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.11" data-path="../ch2-cgo/ch2-11-ext.html">
  
  <a href="../ch2-cgo/ch2-11-ext.html">
    
                    
                    2.11 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.3" data-path="../ch3-asm/readme.html">
  
  <a href="../ch3-asm/readme.html">
    
                    
                    第3章 汇编语言
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.3.1" data-path="../ch3-asm/ch3-01-basic.html">
  
  <a href="../ch3-asm/ch3-01-basic.html">
    
                    
                    3.1 快速入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.2" data-path="../ch3-asm/ch3-02-arch.html">
  
  <a href="../ch3-asm/ch3-02-arch.html">
    
                    
                    3.2 计算机结构
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.3" data-path="../ch3-asm/ch3-03-const-and-var.html">
  
  <a href="../ch3-asm/ch3-03-const-and-var.html">
    
                    
                    3.3 常量和全局变量
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.4" data-path="../ch3-asm/ch3-04-func.html">
  
  <a href="../ch3-asm/ch3-04-func.html">
    
                    
                    3.4 函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.5" data-path="../ch3-asm/ch3-05-control-flow.html">
  
  <a href="../ch3-asm/ch3-05-control-flow.html">
    
                    
                    3.5 控制流
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.6" data-path="../ch3-asm/ch3-06-func-again.html">
  
  <a href="../ch3-asm/ch3-06-func-again.html">
    
                    
                    3.6 再论函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.7" data-path="../ch3-asm/ch3-07-hack-asm.html">
  
  <a href="../ch3-asm/ch3-07-hack-asm.html">
    
                    
                    3.7 汇编语言的威力
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.8" data-path="../ch3-asm/ch3-08-goroutine-id.html">
  
  <a href="../ch3-asm/ch3-08-goroutine-id.html">
    
                    
                    3.8 例子：Goroutine ID
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.9" data-path="../ch3-asm/ch3-09-debug.html">
  
  <a href="../ch3-asm/ch3-09-debug.html">
    
                    
                    3.9 Delve调试器
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.10" data-path="../ch3-asm/ch3-10-ext.html">
  
  <a href="../ch3-asm/ch3-10-ext.html">
    
                    
                    3.10 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.4" data-path="../ch4-rpc/readme.html">
  
  <a href="../ch4-rpc/readme.html">
    
                    
                    第4章 RPC和Protobuf
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.4.1" data-path="../ch4-rpc/ch4-01-rpc-intro.html">
  
  <a href="../ch4-rpc/ch4-01-rpc-intro.html">
    
                    
                    4.1 RPC入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.2" data-path="../ch4-rpc/ch4-02-pb-intro.html">
  
  <a href="../ch4-rpc/ch4-02-pb-intro.html">
    
                    
                    4.2 Protobuf
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.3" data-path="../ch4-rpc/ch4-03-netrpc-hack.html">
  
  <a href="../ch4-rpc/ch4-03-netrpc-hack.html">
    
                    
                    4.3 玩转RPC
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.4" data-path="../ch4-rpc/ch4-04-grpc.html">
  
  <a href="../ch4-rpc/ch4-04-grpc.html">
    
                    
                    4.4 GRPC入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.5" data-path="../ch4-rpc/ch4-05-grpc-hack.html">
  
  <a href="../ch4-rpc/ch4-05-grpc-hack.html">
    
                    
                    4.5 GRPC进阶
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.6" data-path="../ch4-rpc/ch4-06-grpc-ext.html">
  
  <a href="../ch4-rpc/ch4-06-grpc-ext.html">
    
                    
                    4.6 GRPC和Protobuf扩展
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.7" data-path="../ch4-rpc/ch4-07-pbgo.html">
  
  <a href="../ch4-rpc/ch4-07-pbgo.html">
    
                    
                    4.7 pbgo: 基于Protobuf的框架
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.8" data-path="../ch4-rpc/ch4-08-grpcurl.html">
  
  <a href="../ch4-rpc/ch4-08-grpcurl.html">
    
                    
                    4.8 grpcurl工具
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.9" data-path="../ch4-rpc/ch4-09-ext.html">
  
  <a href="../ch4-rpc/ch4-09-ext.html">
    
                    
                    4.9 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.5" data-path="../ch5-web/readme.html">
  
  <a href="../ch5-web/readme.html">
    
                    
                    第5章 Go和Web
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.5.1" data-path="../ch5-web/ch5-01-introduction.html">
  
  <a href="../ch5-web/ch5-01-introduction.html">
    
                    
                    5.1 Web开发简介
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.2" data-path="../ch5-web/ch5-02-router.html">
  
  <a href="../ch5-web/ch5-02-router.html">
    
                    
                    5.2 Router请求路由
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.3" data-path="../ch5-web/ch5-03-middleware.html">
  
  <a href="../ch5-web/ch5-03-middleware.html">
    
                    
                    5.3 Middleware中间件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.4" data-path="../ch5-web/ch5-04-validator.html">
  
  <a href="../ch5-web/ch5-04-validator.html">
    
                    
                    5.4 Validator请求校验
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.5" data-path="../ch5-web/ch5-05-database.html">
  
  <a href="../ch5-web/ch5-05-database.html">
    
                    
                    5.5 Database和数据库打交道
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.6" data-path="../ch5-web/ch5-06-ratelimit.html">
  
  <a href="../ch5-web/ch5-06-ratelimit.html">
    
                    
                    5.6 Ratelimit 服务流量限制
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.7" data-path="../ch5-web/ch5-07-layout-of-web-project.html">
  
  <a href="../ch5-web/ch5-07-layout-of-web-project.html">
    
                    
                    5.7 Layout大型web项目分层
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.8" data-path="../ch5-web/ch5-08-interface-and-web.html">
  
  <a href="../ch5-web/ch5-08-interface-and-web.html">
    
                    
                    5.8 interface 和 table-driven 开发
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.9" data-path="../ch5-web/ch5-09-gated-launch.html">
  
  <a href="../ch5-web/ch5-09-gated-launch.html">
    
                    
                    5.9 灰度发布和 A/B test
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.10" data-path="../ch5-web/ch5-10-ext.html">
  
  <a href="../ch5-web/ch5-10-ext.html">
    
                    
                    5.10 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.6" data-path="../ch6-cloud/readme.html">
  
  <a href="../ch6-cloud/readme.html">
    
                    
                    第6章 分布式系统
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.6.1" data-path="../ch6-cloud/ch6-01-dist-id.html">
  
  <a href="../ch6-cloud/ch6-01-dist-id.html">
    
                    
                    6.1 分布式 id 生成器
            
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</li>

<li class="chapter " data-level="1.5.6.2" data-path="../ch6-cloud/ch6-02-lock.html">
  
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                    6.2 分布式锁
            
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</li>

<li class="chapter " data-level="1.5.6.3" data-path="../ch6-cloud/ch6-03-delay-job.html">
  
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                    6.3 延时任务系统
            
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<li class="chapter " data-level="1.5.6.4" data-path="../ch6-cloud/ch6-04-search-engine.html">
  
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                    6.4 分布式搜索引擎
            
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</li>

<li class="chapter " data-level="1.5.6.5" data-path="../ch6-cloud/ch6-05-load-balance.html">
  
  <a href="../ch6-cloud/ch6-05-load-balance.html">
    
                    
                    6.5 负载均衡
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.6" data-path="../ch6-cloud/ch6-06-config.html">
  
  <a href="../ch6-cloud/ch6-06-config.html">
    
                    
                    6.6 分布式配置管理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.7" data-path="../ch6-cloud/ch6-07-crawler.html">
  
  <a href="../ch6-cloud/ch6-07-crawler.html">
    
                    
                    6.7 分布式爬虫
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.8" data-path="../ch6-cloud/ch6-08-ext.html">
  
  <a href="../ch6-cloud/ch6-08-ext.html">
    
                    
                    6.8 补充说明
            
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</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.7" data-path="../appendix/readme.html">
  
  <a href="../appendix/readme.html">
    
                    
                    附录
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.5.7.1" data-path="../appendix/appendix-a-trap.html">
  
  <a href="../appendix/appendix-a-trap.html">
    
                    
                    附录A: Go语言常见坑
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.7.2" data-path="../appendix/appendix-b-gems.html">
  
  <a href="../appendix/appendix-b-gems.html">
    
                    
                    附录B: 有趣的代码片段
            
    </a>
    

    
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<li class="chapter " data-level="1.5.7.3" data-path="../appendix/appendix-c-author.html">
  
  <a href="../appendix/appendix-c-author.html">
    
                    
                    附录C: 作者简介
            
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                                <h1 id="13-&#x6570;&#x7EC4;&#x3001;&#x5B57;&#x7B26;&#x4E32;&#x548C;&#x5207;&#x7247;">1.3 &#x6570;&#x7EC4;&#x3001;&#x5B57;&#x7B26;&#x4E32;&#x548C;&#x5207;&#x7247;</h1>
<p>&#x5728;&#x4E3B;&#x6D41;&#x7684;&#x7F16;&#x7A0B;&#x8BED;&#x8A00;&#x4E2D;&#x6570;&#x7EC4;&#x53CA;&#x5176;&#x76F8;&#x5173;&#x7684;&#x6570;&#x636E;&#x7ED3;&#x6784;&#x662F;&#x4F7F;&#x7528;&#x5F97;&#x6700;&#x4E3A;&#x9891;&#x7E41;&#x7684;&#xFF0C;&#x53EA;&#x6709;&#x5728;&#x5B83;(&#x4EEC;)&#x4E0D;&#x80FD;&#x6EE1;&#x8DB3;&#x65F6;&#x624D;&#x4F1A;&#x8003;&#x8651;&#x94FE;&#x8868;&#x3001;hash&#x8868;&#xFF08;hash&#x8868;&#x53EF;&#x4EE5;&#x770B;&#x4F5C;&#x662F;&#x6570;&#x7EC4;&#x548C;&#x94FE;&#x8868;&#x7684;&#x6DF7;&#x5408;&#x4F53;&#xFF09;&#x548C;&#x66F4;&#x590D;&#x6742;&#x7684;&#x81EA;&#x5B9A;&#x4E49;&#x6570;&#x636E;&#x7ED3;&#x6784;&#x3002;</p>
<p>Go&#x8BED;&#x8A00;&#x4E2D;&#x6570;&#x7EC4;&#x3001;&#x5B57;&#x7B26;&#x4E32;&#x548C;&#x5207;&#x7247;&#x4E09;&#x8005;&#x662F;&#x5BC6;&#x5207;&#x76F8;&#x5173;&#x7684;&#x6570;&#x636E;&#x7ED3;&#x6784;&#x3002;&#x8FD9;&#x4E09;&#x79CD;&#x6570;&#x636E;&#x7C7B;&#x578B;&#xFF0C;&#x5728;&#x5E95;&#x5C42;&#x539F;&#x59CB;&#x6570;&#x636E;&#x6709;&#x7740;&#x76F8;&#x540C;&#x7684;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#xFF0C;&#x5728;&#x4E0A;&#x5C42;&#xFF0C;&#x56E0;&#x4E3A;&#x8BED;&#x6CD5;&#x7684;&#x9650;&#x5236;&#x800C;&#x6709;&#x7740;&#x4E0D;&#x540C;&#x7684;&#x884C;&#x4E3A;&#x8868;&#x73B0;&#x3002;&#x9996;&#x5148;&#xFF0C;Go&#x8BED;&#x8A00;&#x7684;&#x6570;&#x7EC4;&#x662F;&#x4E00;&#x79CD;&#x503C;&#x7C7B;&#x578B;&#xFF0C;&#x867D;&#x7136;&#x6570;&#x7EC4;&#x7684;&#x5143;&#x7D20;&#x53EF;&#x4EE5;&#x88AB;&#x4FEE;&#x6539;&#xFF0C;&#x4F46;&#x662F;&#x6570;&#x7EC4;&#x672C;&#x8EAB;&#x7684;&#x8D4B;&#x503C;&#x548C;&#x51FD;&#x6570;&#x4F20;&#x53C2;&#x90FD;&#x662F;&#x4EE5;&#x6574;&#x4F53;&#x590D;&#x5236;&#x7684;&#x65B9;&#x5F0F;&#x5904;&#x7406;&#x7684;&#x3002;Go&#x8BED;&#x8A00;&#x5B57;&#x7B26;&#x4E32;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x4E5F;&#x662F;&#x5BF9;&#x5E94;&#x7684;&#x5B57;&#x8282;&#x6570;&#x7EC4;&#xFF0C;&#x4F46;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x53EA;&#x8BFB;&#x5C5E;&#x6027;&#x7981;&#x6B62;&#x4E86;&#x5728;&#x7A0B;&#x5E8F;&#x4E2D;&#x5BF9;&#x5E95;&#x5C42;&#x5B57;&#x8282;&#x6570;&#x7EC4;&#x7684;&#x5143;&#x7D20;&#x7684;&#x4FEE;&#x6539;&#x3002;&#x5B57;&#x7B26;&#x4E32;&#x8D4B;&#x503C;&#x53EA;&#x662F;&#x590D;&#x5236;&#x4E86;&#x6570;&#x636E;&#x5730;&#x5740;&#x548C;&#x5BF9;&#x5E94;&#x7684;&#x957F;&#x5EA6;&#xFF0C;&#x800C;&#x4E0D;&#x4F1A;&#x5BFC;&#x81F4;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x7684;&#x590D;&#x5236;&#x3002;&#x5207;&#x7247;&#x7684;&#x884C;&#x4E3A;&#x66F4;&#x4E3A;&#x7075;&#x6D3B;&#xFF0C;&#x5207;&#x7247;&#x7684;&#x7ED3;&#x6784;&#x548C;&#x5B57;&#x7B26;&#x4E32;&#x7ED3;&#x6784;&#x7C7B;&#x4F3C;&#xFF0C;&#x4F46;&#x662F;&#x89E3;&#x9664;&#x4E86;&#x53EA;&#x8BFB;&#x9650;&#x5236;&#x3002;&#x5207;&#x7247;&#x7684;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x867D;&#x7136;&#x4E5F;&#x662F;&#x5BF9;&#x5E94;&#x6570;&#x636E;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x7EC4;&#xFF0C;&#x4F46;&#x662F;&#x6BCF;&#x4E2A;&#x5207;&#x7247;&#x8FD8;&#x6709;&#x72EC;&#x7ACB;&#x7684;&#x957F;&#x5EA6;&#x548C;&#x5BB9;&#x91CF;&#x4FE1;&#x606F;&#xFF0C;&#x5207;&#x7247;&#x8D4B;&#x503C;&#x548C;&#x51FD;&#x6570;&#x4F20;&#x53C2;&#x6570;&#x65F6;&#x4E5F;&#x662F;&#x5C06;&#x5207;&#x7247;&#x5934;&#x4FE1;&#x606F;&#x90E8;&#x5206;&#x6309;&#x4F20;&#x503C;&#x65B9;&#x5F0F;&#x5904;&#x7406;&#x3002;&#x56E0;&#x4E3A;&#x5207;&#x7247;&#x5934;&#x542B;&#x6709;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x7684;&#x6307;&#x9488;&#xFF0C;&#x6240;&#x4EE5;&#x5B83;&#x7684;&#x8D4B;&#x503C;&#x4E5F;&#x4E0D;&#x4F1A;&#x5BFC;&#x81F4;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x7684;&#x590D;&#x5236;&#x3002;&#x5176;&#x5B9E;Go&#x8BED;&#x8A00;&#x7684;&#x8D4B;&#x503C;&#x548C;&#x51FD;&#x6570;&#x4F20;&#x53C2;&#x89C4;&#x5219;&#x5F88;&#x7B80;&#x5355;&#xFF0C;&#x9664;&#x4E86;&#x95ED;&#x5305;&#x51FD;&#x6570;&#x4EE5;&#x5F15;&#x7528;&#x7684;&#x65B9;&#x5F0F;&#x5BF9;&#x5916;&#x90E8;&#x53D8;&#x91CF;&#x8BBF;&#x95EE;&#x4E4B;&#x5916;&#xFF0C;&#x5176;&#x5B83;&#x8D4B;&#x503C;&#x548C;&#x51FD;&#x6570;&#x4F20;&#x53C2;&#x6570;&#x90FD;&#x662F;&#x4EE5;&#x4F20;&#x503C;&#x7684;&#x65B9;&#x5F0F;&#x5904;&#x7406;&#x3002;&#x8981;&#x7406;&#x89E3;&#x6570;&#x7EC4;&#x3001;&#x5B57;&#x7B26;&#x4E32;&#x548C;&#x5207;&#x7247;&#x4E09;&#x79CD;&#x4E0D;&#x540C;&#x7684;&#x5904;&#x7406;&#x65B9;&#x5F0F;&#x7684;&#x539F;&#x56E0;&#x9700;&#x8981;&#x8BE6;&#x7EC6;&#x4E86;&#x89E3;&#x5B83;&#x4EEC;&#x7684;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x7ED3;&#x6784;&#x3002;</p>
<h2 id="131-&#x6570;&#x7EC4;">1.3.1 &#x6570;&#x7EC4;</h2>
<p>&#x6570;&#x7EC4;&#x662F;&#x4E00;&#x4E2A;&#x7531;&#x56FA;&#x5B9A;&#x957F;&#x5EA6;&#x7684;&#x7279;&#x5B9A;&#x7C7B;&#x578B;&#x5143;&#x7D20;&#x7EC4;&#x6210;&#x7684;&#x5E8F;&#x5217;&#xFF0C;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;&#x53EF;&#x4EE5;&#x7531;&#x96F6;&#x4E2A;&#x6216;&#x591A;&#x4E2A;&#x5143;&#x7D20;&#x7EC4;&#x6210;&#x3002;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x662F;&#x6570;&#x7EC4;&#x7C7B;&#x578B;&#x7684;&#x7EC4;&#x6210;&#x90E8;&#x5206;&#x3002;&#x56E0;&#x4E3A;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x662F;&#x6570;&#x7EC4;&#x7C7B;&#x578B;&#x7684;&#x4E00;&#x4E2A;&#x90E8;&#x5206;&#xFF0C;&#x4E0D;&#x540C;&#x957F;&#x5EA6;&#x6216;&#x4E0D;&#x540C;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#x7EC4;&#x6210;&#x7684;&#x6570;&#x7EC4;&#x90FD;&#x662F;&#x4E0D;&#x540C;&#x7684;&#x7C7B;&#x578B;&#xFF0C;&#x56E0;&#x6B64;&#x5728;Go&#x8BED;&#x8A00;&#x4E2D;&#x5F88;&#x5C11;&#x76F4;&#x63A5;&#x4F7F;&#x7528;&#x6570;&#x7EC4;&#xFF08;&#x4E0D;&#x540C;&#x957F;&#x5EA6;&#x7684;&#x6570;&#x7EC4;&#x56E0;&#x4E3A;&#x7C7B;&#x578B;&#x4E0D;&#x540C;&#x65E0;&#x6CD5;&#x76F4;&#x63A5;&#x8D4B;&#x503C;&#xFF09;&#x3002;&#x548C;&#x6570;&#x7EC4;&#x5BF9;&#x5E94;&#x7684;&#x7C7B;&#x578B;&#x662F;&#x5207;&#x7247;&#xFF0C;&#x5207;&#x7247;&#x662F;&#x53EF;&#x4EE5;&#x52A8;&#x6001;&#x589E;&#x957F;&#x548C;&#x6536;&#x7F29;&#x7684;&#x5E8F;&#x5217;&#xFF0C;&#x5207;&#x7247;&#x7684;&#x529F;&#x80FD;&#x4E5F;&#x66F4;&#x52A0;&#x7075;&#x6D3B;&#xFF0C;&#x4F46;&#x662F;&#x8981;&#x7406;&#x89E3;&#x5207;&#x7247;&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;&#x8FD8;&#x662F;&#x8981;&#x5148;&#x7406;&#x89E3;&#x6570;&#x7EC4;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x5148;&#x770B;&#x770B;&#x6570;&#x7EC4;&#x6709;&#x54EA;&#x4E9B;&#x5B9A;&#x4E49;&#x65B9;&#x5F0F;:</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a [<span class="hljs-number">3</span>]<span class="hljs-keyword">int</span>                    <span class="hljs-comment">// &#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x957F;&#x5EA6;&#x4E3A;3&#x7684;int&#x7C7B;&#x578B;&#x6570;&#x7EC4;, &#x5143;&#x7D20;&#x5168;&#x90E8;&#x4E3A;0</span>
<span class="hljs-keyword">var</span> b = [...]<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>}       <span class="hljs-comment">// &#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x957F;&#x5EA6;&#x4E3A;3&#x7684;int&#x7C7B;&#x578B;&#x6570;&#x7EC4;, &#x5143;&#x7D20;&#x4E3A; 1, 2, 3</span>
<span class="hljs-keyword">var</span> c = [...]<span class="hljs-keyword">int</span>{<span class="hljs-number">2</span>: <span class="hljs-number">3</span>, <span class="hljs-number">1</span>: <span class="hljs-number">2</span>}    <span class="hljs-comment">// &#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x957F;&#x5EA6;&#x4E3A;3&#x7684;int&#x7C7B;&#x578B;&#x6570;&#x7EC4;, &#x5143;&#x7D20;&#x4E3A; 0, 2, 3</span>
<span class="hljs-keyword">var</span> d = [...]<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">4</span>: <span class="hljs-number">5</span>, <span class="hljs-number">6</span>} <span class="hljs-comment">// &#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x957F;&#x5EA6;&#x4E3A;6&#x7684;int&#x7C7B;&#x578B;&#x6570;&#x7EC4;, &#x5143;&#x7D20;&#x4E3A; 1, 2, 0, 0, 5, 6</span>
</code></pre>
<p>&#x7B2C;&#x4E00;&#x79CD;&#x65B9;&#x5F0F;&#x662F;&#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;&#x53D8;&#x91CF;&#x7684;&#x6700;&#x57FA;&#x672C;&#x7684;&#x65B9;&#x5F0F;&#xFF0C;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x660E;&#x786E;&#x6307;&#x5B9A;&#xFF0C;&#x6570;&#x7EC4;&#x4E2D;&#x7684;&#x6BCF;&#x4E2A;&#x5143;&#x7D20;&#x90FD;&#x4EE5;&#x96F6;&#x503C;&#x521D;&#x59CB;&#x5316;&#x3002;</p>
<p>&#x7B2C;&#x4E8C;&#x79CD;&#x65B9;&#x5F0F;&#x5B9A;&#x4E49;&#x6570;&#x7EC4;&#xFF0C;&#x53EF;&#x4EE5;&#x5728;&#x5B9A;&#x4E49;&#x7684;&#x65F6;&#x5019;&#x987A;&#x5E8F;&#x6307;&#x5B9A;&#x5168;&#x90E8;&#x5143;&#x7D20;&#x7684;&#x521D;&#x59CB;&#x5316;&#x503C;&#xFF0C;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x6839;&#x636E;&#x521D;&#x59CB;&#x5316;&#x5143;&#x7D20;&#x7684;&#x6570;&#x76EE;&#x81EA;&#x52A8;&#x8BA1;&#x7B97;&#x3002;</p>
<p>&#x7B2C;&#x4E09;&#x79CD;&#x65B9;&#x5F0F;&#x662F;&#x4EE5;&#x7D22;&#x5F15;&#x7684;&#x65B9;&#x5F0F;&#x6765;&#x521D;&#x59CB;&#x5316;&#x6570;&#x7EC4;&#x7684;&#x5143;&#x7D20;&#xFF0C;&#x56E0;&#x6B64;&#x5143;&#x7D20;&#x7684;&#x521D;&#x59CB;&#x5316;&#x503C;&#x51FA;&#x73B0;&#x987A;&#x5E8F;&#x6BD4;&#x8F83;&#x968F;&#x610F;&#x3002;&#x8FD9;&#x79CD;&#x521D;&#x59CB;&#x5316;&#x65B9;&#x5F0F;&#x548C;<code>map[int]Type</code>&#x7C7B;&#x578B;&#x7684;&#x521D;&#x59CB;&#x5316;&#x8BED;&#x6CD5;&#x7C7B;&#x4F3C;&#x3002;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x4EE5;&#x51FA;&#x73B0;&#x7684;&#x6700;&#x5927;&#x7684;&#x7D22;&#x5F15;&#x4E3A;&#x51C6;&#xFF0C;&#x6CA1;&#x6709;&#x660E;&#x786E;&#x521D;&#x59CB;&#x5316;&#x7684;&#x5143;&#x7D20;&#x4F9D;&#x7136;&#x7528;0&#x503C;&#x521D;&#x59CB;&#x5316;&#x3002;</p>
<p>&#x7B2C;&#x56DB;&#x79CD;&#x65B9;&#x5F0F;&#x662F;&#x6DF7;&#x5408;&#x4E86;&#x7B2C;&#x4E8C;&#x79CD;&#x548C;&#x7B2C;&#x4E09;&#x79CD;&#x7684;&#x521D;&#x59CB;&#x5316;&#x65B9;&#x5F0F;&#xFF0C;&#x524D;&#x9762;&#x4E24;&#x4E2A;&#x5143;&#x7D20;&#x91C7;&#x7528;&#x987A;&#x5E8F;&#x521D;&#x59CB;&#x5316;&#xFF0C;&#x7B2C;&#x4E09;&#x7B2C;&#x56DB;&#x4E2A;&#x5143;&#x7D20;&#x96F6;&#x503C;&#x521D;&#x59CB;&#x5316;&#xFF0C;&#x7B2C;&#x4E94;&#x4E2A;&#x5143;&#x7D20;&#x901A;&#x8FC7;&#x7D22;&#x5F15;&#x521D;&#x59CB;&#x5316;&#xFF0C;&#x6700;&#x540E;&#x4E00;&#x4E2A;&#x5143;&#x7D20;&#x8DDF;&#x5728;&#x524D;&#x9762;&#x7684;&#x7B2C;&#x4E94;&#x4E2A;&#x5143;&#x7D20;&#x4E4B;&#x540E;&#x91C7;&#x7528;&#x987A;&#x5E8F;&#x521D;&#x59CB;&#x5316;&#x3002;</p>
<p>&#x6570;&#x7EC4;&#x7684;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#x6BD4;&#x8F83;&#x7B80;&#x5355;&#x3002;&#x6BD4;&#x5982;&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;<code>[4]int{2,3,5,7}</code>&#x6570;&#x7EC4;&#x503C;&#x5BF9;&#x5E94;&#x7684;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#xFF1A;</p>
<p><img src="../images/ch1.3-1-array-4int.ditaa.png" alt=""></p>
<p><em>&#x56FE; 1.3-1 &#x6570;&#x7EC4;&#x5E03;&#x5C40;</em></p>
<p>Go&#x8BED;&#x8A00;&#x4E2D;&#x6570;&#x7EC4;&#x662F;&#x503C;&#x8BED;&#x4E49;&#x3002;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;&#x53D8;&#x91CF;&#x5373;&#x8868;&#x793A;&#x6574;&#x4E2A;&#x6570;&#x7EC4;&#xFF0C;&#x5B83;&#x5E76;&#x4E0D;&#x662F;&#x9690;&#x5F0F;&#x7684;&#x6307;&#x5411;&#x7B2C;&#x4E00;&#x4E2A;&#x5143;&#x7D20;&#x7684;&#x6307;&#x9488;&#xFF08;&#x6BD4;&#x5982;C&#x8BED;&#x8A00;&#x7684;&#x6570;&#x7EC4;&#xFF09;&#xFF0C;&#x800C;&#x662F;&#x4E00;&#x4E2A;&#x5B8C;&#x6574;&#x7684;&#x503C;&#x3002;&#x5F53;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;&#x53D8;&#x91CF;&#x88AB;&#x8D4B;&#x503C;&#x6216;&#x8005;&#x88AB;&#x4F20;&#x9012;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x5B9E;&#x9645;&#x4E0A;&#x4F1A;&#x590D;&#x5236;&#x6574;&#x4E2A;&#x6570;&#x7EC4;&#x3002;&#x5982;&#x679C;&#x6570;&#x7EC4;&#x8F83;&#x5927;&#x7684;&#x8BDD;&#xFF0C;&#x6570;&#x7EC4;&#x7684;&#x8D4B;&#x503C;&#x4E5F;&#x4F1A;&#x6709;&#x8F83;&#x5927;&#x7684;&#x5F00;&#x9500;&#x3002;&#x4E3A;&#x4E86;&#x907F;&#x514D;&#x590D;&#x5236;&#x6570;&#x7EC4;&#x5E26;&#x6765;&#x7684;&#x5F00;&#x9500;&#xFF0C;&#x53EF;&#x4EE5;&#x4F20;&#x9012;&#x4E00;&#x4E2A;&#x6307;&#x5411;&#x6570;&#x7EC4;&#x7684;&#x6307;&#x9488;&#xFF0C;&#x4F46;&#x662F;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x5E76;&#x4E0D;&#x662F;&#x6570;&#x7EC4;&#x3002;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a = [...]<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>} <span class="hljs-comment">// a &#x662F;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;</span>
<span class="hljs-keyword">var</span> b = &amp;a                <span class="hljs-comment">// b &#x662F;&#x6307;&#x5411;&#x6570;&#x7EC4;&#x7684;&#x6307;&#x9488;</span>

fmt.Println(a[<span class="hljs-number">0</span>], a[<span class="hljs-number">1</span>])   <span class="hljs-comment">// &#x6253;&#x5370;&#x6570;&#x7EC4;&#x7684;&#x524D;2&#x4E2A;&#x5143;&#x7D20;</span>
fmt.Println(b[<span class="hljs-number">0</span>], b[<span class="hljs-number">1</span>])   <span class="hljs-comment">// &#x901A;&#x8FC7;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x8BBF;&#x95EE;&#x6570;&#x7EC4;&#x5143;&#x7D20;&#x7684;&#x65B9;&#x5F0F;&#x548C;&#x6570;&#x7EC4;&#x7C7B;&#x4F3C;</span>

<span class="hljs-keyword">for</span> i, v := <span class="hljs-keyword">range</span> b {     <span class="hljs-comment">// &#x901A;&#x8FC7;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x8FED;&#x4EE3;&#x6570;&#x7EC4;&#x7684;&#x5143;&#x7D20;</span>
    fmt.Println(i, v)
}
</code></pre>
<p>&#x5176;&#x4E2D;<code>b</code>&#x662F;&#x6307;&#x5411;<code>a</code>&#x6570;&#x7EC4;&#x7684;&#x6307;&#x9488;&#xFF0C;&#x4F46;&#x662F;&#x901A;&#x8FC7;<code>b</code>&#x8BBF;&#x95EE;&#x6570;&#x7EC4;&#x4E2D;&#x5143;&#x7D20;&#x7684;&#x5199;&#x6CD5;&#x548C;<code>a</code>&#x7C7B;&#x4F3C;&#x7684;&#x3002;&#x8FD8;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;<code>for range</code>&#x6765;&#x8FED;&#x4EE3;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x6307;&#x5411;&#x7684;&#x6570;&#x7EC4;&#x5143;&#x7D20;&#x3002;&#x5176;&#x5B9E;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x7C7B;&#x578B;&#x9664;&#x4E86;&#x7C7B;&#x578B;&#x548C;&#x6570;&#x7EC4;&#x4E0D;&#x540C;&#x4E4B;&#x5916;&#xFF0C;&#x901A;&#x8FC7;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x64CD;&#x4F5C;&#x6570;&#x7EC4;&#x7684;&#x65B9;&#x5F0F;&#x548C;&#x901A;&#x8FC7;&#x6570;&#x7EC4;&#x672C;&#x8EAB;&#x7684;&#x64CD;&#x4F5C;&#x7C7B;&#x4F3C;&#xFF0C;&#x800C;&#x4E14;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x8D4B;&#x503C;&#x65F6;&#x53EA;&#x4F1A;&#x62F7;&#x8D1D;&#x4E00;&#x4E2A;&#x6307;&#x9488;&#x3002;&#x4F46;&#x662F;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x7C7B;&#x578B;&#x4F9D;&#x7136;&#x4E0D;&#x591F;&#x7075;&#x6D3B;&#xFF0C;&#x56E0;&#x4E3A;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x662F;&#x6570;&#x7EC4;&#x7C7B;&#x578B;&#x7684;&#x7EC4;&#x6210;&#x90E8;&#x5206;&#xFF0C;&#x6307;&#x5411;&#x4E0D;&#x540C;&#x957F;&#x5EA6;&#x6570;&#x7EC4;&#x7684;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x7C7B;&#x578B;&#x4E5F;&#x662F;&#x5B8C;&#x5168;&#x4E0D;&#x540C;&#x7684;&#x3002;</p>
<p>&#x53EF;&#x4EE5;&#x5C06;&#x6570;&#x7EC4;&#x770B;&#x4F5C;&#x4E00;&#x4E2A;&#x7279;&#x6B8A;&#x7684;&#x7ED3;&#x6784;&#x4F53;&#xFF0C;&#x7ED3;&#x6784;&#x7684;&#x5B57;&#x6BB5;&#x540D;&#x5BF9;&#x5E94;&#x6570;&#x7EC4;&#x7684;&#x7D22;&#x5F15;&#xFF0C;&#x540C;&#x65F6;&#x7ED3;&#x6784;&#x4F53;&#x6210;&#x5458;&#x7684;&#x6570;&#x76EE;&#x662F;&#x56FA;&#x5B9A;&#x7684;&#x3002;&#x5185;&#x7F6E;&#x51FD;&#x6570;<code>len</code>&#x53EF;&#x4EE5;&#x7528;&#x4E8E;&#x8BA1;&#x7B97;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#xFF0C;<code>cap</code>&#x51FD;&#x6570;&#x53EF;&#x4EE5;&#x7528;&#x4E8E;&#x8BA1;&#x7B97;&#x6570;&#x7EC4;&#x7684;&#x5BB9;&#x91CF;&#x3002;&#x4E0D;&#x8FC7;&#x5BF9;&#x4E8E;&#x6570;&#x7EC4;&#x7C7B;&#x578B;&#x6765;&#x8BF4;&#xFF0C;<code>len</code>&#x548C;<code>cap</code>&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x7684;&#x7ED3;&#x679C;&#x59CB;&#x7EC8;&#x662F;&#x4E00;&#x6837;&#x7684;&#xFF0C;&#x90FD;&#x662F;&#x5BF9;&#x5E94;&#x6570;&#x7EC4;&#x7C7B;&#x578B;&#x7684;&#x957F;&#x5EA6;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x7528;<code>for</code>&#x5FAA;&#x73AF;&#x6765;&#x8FED;&#x4EE3;&#x6570;&#x7EC4;&#x3002;&#x4E0B;&#x9762;&#x5E38;&#x89C1;&#x7684;&#x51E0;&#x79CD;&#x65B9;&#x5F0F;&#x90FD;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x904D;&#x5386;&#x6570;&#x7EC4;&#xFF1A;</p>
<pre><code class="lang-go">    <span class="hljs-keyword">for</span> i := <span class="hljs-keyword">range</span> a {
        fmt.Printf(<span class="hljs-string">&quot;a[%d]: %d\n&quot;</span>, i, a[i])
    }
    <span class="hljs-keyword">for</span> i, v := <span class="hljs-keyword">range</span> b {
        fmt.Printf(<span class="hljs-string">&quot;b[%d]: %d\n&quot;</span>, i, v)
    }
    <span class="hljs-keyword">for</span> i := <span class="hljs-number">0</span>; i &lt; <span class="hljs-built_in">len</span>(c); i++ {
        fmt.Printf(<span class="hljs-string">&quot;c[%d]: %d\n&quot;</span>, i, c[i])
    }
</code></pre>
<p>&#x7528;<code>for range</code>&#x65B9;&#x5F0F;&#x8FED;&#x4EE3;&#x7684;&#x6027;&#x80FD;&#x53EF;&#x80FD;&#x4F1A;&#x66F4;&#x597D;&#x4E00;&#x4E9B;&#xFF0C;&#x56E0;&#x4E3A;&#x8FD9;&#x79CD;&#x8FED;&#x4EE3;&#x53EF;&#x4EE5;&#x4FDD;&#x8BC1;&#x4E0D;&#x4F1A;&#x51FA;&#x73B0;&#x6570;&#x7EC4;&#x8D8A;&#x754C;&#x7684;&#x60C5;&#x5F62;&#xFF0C;&#x6BCF;&#x8F6E;&#x8FED;&#x4EE3;&#x5BF9;&#x6570;&#x7EC4;&#x5143;&#x7D20;&#x7684;&#x8BBF;&#x95EE;&#x65F6;&#x53EF;&#x4EE5;&#x7701;&#x53BB;&#x5BF9;&#x4E0B;&#x6807;&#x8D8A;&#x754C;&#x7684;&#x5224;&#x65AD;&#x3002;</p>
<p>&#x7528;<code>for range</code>&#x65B9;&#x5F0F;&#x8FED;&#x4EE3;&#xFF0C;&#x8FD8;&#x53EF;&#x4EE5;&#x5FFD;&#x7565;&#x8FED;&#x4EE3;&#x65F6;&#x7684;&#x4E0B;&#x6807;:</p>
<pre><code class="lang-go">    <span class="hljs-keyword">var</span> times [<span class="hljs-number">5</span>][<span class="hljs-number">0</span>]<span class="hljs-keyword">int</span>
    <span class="hljs-keyword">for</span> <span class="hljs-keyword">range</span> times {
        fmt.Println(<span class="hljs-string">&quot;hello&quot;</span>)
    }
</code></pre>
<p>&#x5176;&#x4E2D;<code>times</code>&#x5BF9;&#x5E94;&#x4E00;&#x4E2A;<code>[5][0]int</code>&#x7C7B;&#x578B;&#x7684;&#x6570;&#x7EC4;&#xFF0C;&#x867D;&#x7136;&#x7B2C;&#x4E00;&#x7EF4;&#x6570;&#x7EC4;&#x6709;&#x957F;&#x5EA6;&#xFF0C;&#x4F46;&#x662F;&#x6570;&#x7EC4;&#x7684;&#x5143;&#x7D20;<code>[0]int</code>&#x5927;&#x5C0F;&#x662F;0&#xFF0C;&#x56E0;&#x6B64;&#x6574;&#x4E2A;&#x6570;&#x7EC4;&#x5360;&#x7528;&#x7684;&#x5185;&#x5B58;&#x5927;&#x5C0F;&#x4F9D;&#x7136;&#x662F;0&#x3002;&#x6CA1;&#x6709;&#x4ED8;&#x51FA;&#x989D;&#x5916;&#x7684;&#x5185;&#x5B58;&#x4EE3;&#x4EF7;&#xFF0C;&#x6211;&#x4EEC;&#x5C31;&#x901A;&#x8FC7;<code>for range</code>&#x65B9;&#x5F0F;&#x5B9E;&#x73B0;&#x4E86;<code>times</code>&#x6B21;&#x5FEB;&#x901F;&#x8FED;&#x4EE3;&#x3002;</p>
<p>&#x6570;&#x7EC4;&#x4E0D;&#x4EC5;&#x4EC5;&#x53EF;&#x4EE5;&#x7528;&#x4E8E;&#x6570;&#x503C;&#x7C7B;&#x578B;&#xFF0C;&#x8FD8;&#x53EF;&#x4EE5;&#x5B9A;&#x4E49;&#x5B57;&#x7B26;&#x4E32;&#x6570;&#x7EC4;&#x3001;&#x7ED3;&#x6784;&#x4F53;&#x6570;&#x7EC4;&#x3001;&#x51FD;&#x6570;&#x6570;&#x7EC4;&#x3001;&#x63A5;&#x53E3;&#x6570;&#x7EC4;&#x3001;&#x7BA1;&#x9053;&#x6570;&#x7EC4;&#x7B49;&#x7B49;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-comment">// &#x5B57;&#x7B26;&#x4E32;&#x6570;&#x7EC4;</span>
<span class="hljs-keyword">var</span> s1 = [<span class="hljs-number">2</span>]<span class="hljs-keyword">string</span>{<span class="hljs-string">&quot;hello&quot;</span>, <span class="hljs-string">&quot;world&quot;</span>}
<span class="hljs-keyword">var</span> s2 = [...]<span class="hljs-keyword">string</span>{<span class="hljs-string">&quot;&#x4F60;&#x597D;&quot;</span>, <span class="hljs-string">&quot;&#x4E16;&#x754C;&quot;</span>}
<span class="hljs-keyword">var</span> s3 = [...]<span class="hljs-keyword">string</span>{<span class="hljs-number">1</span>: <span class="hljs-string">&quot;&#x4E16;&#x754C;&quot;</span>, <span class="hljs-number">0</span>: <span class="hljs-string">&quot;&#x4F60;&#x597D;&quot;</span>, }

<span class="hljs-comment">// &#x7ED3;&#x6784;&#x4F53;&#x6570;&#x7EC4;</span>
<span class="hljs-keyword">var</span> line1 [<span class="hljs-number">2</span>]image.Point
<span class="hljs-keyword">var</span> line2 = [...]image.Point{image.Point{X: <span class="hljs-number">0</span>, Y: <span class="hljs-number">0</span>}, image.Point{X: <span class="hljs-number">1</span>, Y: <span class="hljs-number">1</span>}}
<span class="hljs-keyword">var</span> line3 = [...]image.Point{{<span class="hljs-number">0</span>, <span class="hljs-number">0</span>}, {<span class="hljs-number">1</span>, <span class="hljs-number">1</span>}}

<span class="hljs-comment">// &#x56FE;&#x50CF;&#x89E3;&#x7801;&#x5668;&#x6570;&#x7EC4;</span>
<span class="hljs-keyword">var</span> decoder1 [<span class="hljs-number">2</span>]<span class="hljs-keyword">func</span>(io.Reader) (image.Image, error)
<span class="hljs-keyword">var</span> decoder2 = [...]<span class="hljs-keyword">func</span>(io.Reader) (image.Image, error){
    png.Decode,
    jpeg.Decode,
}

<span class="hljs-comment">// &#x63A5;&#x53E3;&#x6570;&#x7EC4;</span>
<span class="hljs-keyword">var</span> unknown1 [<span class="hljs-number">2</span>]<span class="hljs-keyword">interface</span>{}
<span class="hljs-keyword">var</span> unknown2 = [...]<span class="hljs-keyword">interface</span>{}{<span class="hljs-number">123</span>, <span class="hljs-string">&quot;&#x4F60;&#x597D;&quot;</span>}

<span class="hljs-comment">// &#x7BA1;&#x9053;&#x6570;&#x7EC4;</span>
<span class="hljs-keyword">var</span> chanList = [<span class="hljs-number">2</span>]<span class="hljs-keyword">chan</span> <span class="hljs-keyword">int</span>{}
</code></pre>
<p>&#x6211;&#x4EEC;&#x8FD8;&#x53EF;&#x4EE5;&#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x7A7A;&#x7684;&#x6570;&#x7EC4;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> d [<span class="hljs-number">0</span>]<span class="hljs-keyword">int</span>       <span class="hljs-comment">// &#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x957F;&#x5EA6;&#x4E3A;0&#x7684;&#x6570;&#x7EC4;</span>
<span class="hljs-keyword">var</span> e = [<span class="hljs-number">0</span>]<span class="hljs-keyword">int</span>{}   <span class="hljs-comment">// &#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x957F;&#x5EA6;&#x4E3A;0&#x7684;&#x6570;&#x7EC4;</span>
<span class="hljs-keyword">var</span> f = [...]<span class="hljs-keyword">int</span>{} <span class="hljs-comment">// &#x5B9A;&#x4E49;&#x4E00;&#x4E2A;&#x957F;&#x5EA6;&#x4E3A;0&#x7684;&#x6570;&#x7EC4;</span>
</code></pre>
<p>&#x957F;&#x5EA6;&#x4E3A;0&#x7684;&#x6570;&#x7EC4;&#x5728;&#x5185;&#x5B58;&#x4E2D;&#x5E76;&#x4E0D;&#x5360;&#x7528;&#x7A7A;&#x95F4;&#x3002;&#x7A7A;&#x6570;&#x7EC4;&#x867D;&#x7136;&#x5F88;&#x5C11;&#x76F4;&#x63A5;&#x4F7F;&#x7528;&#xFF0C;&#x4F46;&#x662F;&#x53EF;&#x4EE5;&#x7528;&#x4E8E;&#x5F3A;&#x8C03;&#x67D0;&#x79CD;&#x7279;&#x6709;&#x7C7B;&#x578B;&#x7684;&#x64CD;&#x4F5C;&#x65F6;&#x907F;&#x514D;&#x5206;&#x914D;&#x989D;&#x5916;&#x7684;&#x5185;&#x5B58;&#x7A7A;&#x95F4;&#xFF0C;&#x6BD4;&#x5982;&#x7528;&#x4E8E;&#x7BA1;&#x9053;&#x7684;&#x540C;&#x6B65;&#x64CD;&#x4F5C;&#xFF1A;</p>
<pre><code class="lang-go">    c1 := <span class="hljs-built_in">make</span>(<span class="hljs-keyword">chan</span> [<span class="hljs-number">0</span>]<span class="hljs-keyword">int</span>)
    <span class="hljs-keyword">go</span> <span class="hljs-keyword">func</span>() {
        fmt.Println(<span class="hljs-string">&quot;c1&quot;</span>)
        c1 &lt;- [<span class="hljs-number">0</span>]<span class="hljs-keyword">int</span>{}
    }()
    &lt;-c1
</code></pre>
<p>&#x5728;&#x8FD9;&#x91CC;&#xFF0C;&#x6211;&#x4EEC;&#x5E76;&#x4E0D;&#x5173;&#x5FC3;&#x7BA1;&#x9053;&#x4E2D;&#x4F20;&#x8F93;&#x6570;&#x636E;&#x7684;&#x771F;&#x5B9E;&#x7C7B;&#x578B;&#xFF0C;&#x5176;&#x4E2D;&#x7BA1;&#x9053;&#x63A5;&#x6536;&#x548C;&#x53D1;&#x9001;&#x64CD;&#x4F5C;&#x53EA;&#x662F;&#x7528;&#x4E8E;&#x6D88;&#x606F;&#x7684;&#x540C;&#x6B65;&#x3002;&#x5BF9;&#x4E8E;&#x8FD9;&#x79CD;&#x573A;&#x666F;&#xFF0C;&#x6211;&#x4EEC;&#x7528;&#x7A7A;&#x6570;&#x7EC4;&#x6765;&#x4F5C;&#x4E3A;&#x7BA1;&#x9053;&#x7C7B;&#x578B;&#x53EF;&#x4EE5;&#x51CF;&#x5C11;&#x7BA1;&#x9053;&#x5143;&#x7D20;&#x8D4B;&#x503C;&#x65F6;&#x7684;&#x5F00;&#x9500;&#x3002;&#x5F53;&#x7136;&#x4E00;&#x822C;&#x66F4;&#x503E;&#x5411;&#x4E8E;&#x7528;&#x65E0;&#x7C7B;&#x578B;&#x7684;&#x533F;&#x540D;&#x7ED3;&#x6784;&#x4F53;&#x4EE3;&#x66FF;&#xFF1A;</p>
<pre><code class="lang-go">    c2 := <span class="hljs-built_in">make</span>(<span class="hljs-keyword">chan</span> <span class="hljs-keyword">struct</span>{})
    <span class="hljs-keyword">go</span> <span class="hljs-keyword">func</span>() {
        fmt.Println(<span class="hljs-string">&quot;c2&quot;</span>)
        c2 &lt;- <span class="hljs-keyword">struct</span>{}{} <span class="hljs-comment">// struct{}&#x90E8;&#x5206;&#x662F;&#x7C7B;&#x578B;, {}&#x8868;&#x793A;&#x5BF9;&#x5E94;&#x7684;&#x7ED3;&#x6784;&#x4F53;&#x503C;</span>
    }()
    &lt;-c2
</code></pre>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x7528;<code>fmt.Printf</code>&#x51FD;&#x6570;&#x63D0;&#x4F9B;&#x7684;<code>%T</code>&#x6216;<code>%#v</code>&#x8C13;&#x8BCD;&#x8BED;&#x6CD5;&#x6765;&#x6253;&#x5370;&#x6570;&#x7EC4;&#x7684;&#x7C7B;&#x578B;&#x548C;&#x8BE6;&#x7EC6;&#x4FE1;&#x606F;&#xFF1A;</p>
<pre><code class="lang-go">    fmt.Printf(<span class="hljs-string">&quot;b: %T\n&quot;</span>, b)  <span class="hljs-comment">// b: [3]int</span>
    fmt.Printf(<span class="hljs-string">&quot;b: %#v\n&quot;</span>, b) <span class="hljs-comment">// b: [3]int{1, 2, 3}</span>
</code></pre>
<p>&#x5728;Go&#x8BED;&#x8A00;&#x4E2D;&#xFF0C;&#x6570;&#x7EC4;&#x7C7B;&#x578B;&#x662F;&#x5207;&#x7247;&#x548C;&#x5B57;&#x7B26;&#x4E32;&#x7B49;&#x7ED3;&#x6784;&#x7684;&#x57FA;&#x7840;&#x3002;&#x4EE5;&#x4E0A;&#x6570;&#x7EC4;&#x7684;&#x5F88;&#x591A;&#x64CD;&#x4F5C;&#x90FD;&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x7528;&#x4E8E;&#x5B57;&#x7B26;&#x4E32;&#x6216;&#x5207;&#x7247;&#x4E2D;&#x3002;</p>
<h2 id="132-&#x5B57;&#x7B26;&#x4E32;">1.3.2 &#x5B57;&#x7B26;&#x4E32;</h2>
<p>&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x662F;&#x4E00;&#x4E2A;&#x4E0D;&#x53EF;&#x6539;&#x53D8;&#x7684;&#x5B57;&#x8282;&#x5E8F;&#x5217;&#xFF0C;&#x5B57;&#x7B26;&#x4E32;&#x901A;&#x5E38;&#x662F;&#x7528;&#x6765;&#x5305;&#x542B;&#x4EBA;&#x7C7B;&#x53EF;&#x8BFB;&#x7684;&#x6587;&#x672C;&#x6570;&#x636E;&#x3002;&#x548C;&#x6570;&#x7EC4;&#x4E0D;&#x540C;&#x7684;&#x662F;&#xFF0C;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x5143;&#x7D20;&#x4E0D;&#x53EF;&#x4FEE;&#x6539;&#xFF0C;&#x662F;&#x4E00;&#x4E2A;&#x53EA;&#x8BFB;&#x7684;&#x5B57;&#x8282;&#x6570;&#x7EC4;&#x3002;&#x6BCF;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x957F;&#x5EA6;&#x867D;&#x7136;&#x4E5F;&#x662F;&#x56FA;&#x5B9A;&#x7684;&#xFF0C;&#x4F46;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x957F;&#x5EA6;&#x5E76;&#x4E0D;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#x7C7B;&#x578B;&#x7684;&#x4E00;&#x90E8;&#x5206;&#x3002;&#x7531;&#x4E8E;Go&#x8BED;&#x8A00;&#x7684;&#x6E90;&#x4EE3;&#x7801;&#x8981;&#x6C42;&#x662F;UTF8&#x7F16;&#x7801;&#xFF0C;&#x5BFC;&#x81F4;Go&#x6E90;&#x4EE3;&#x7801;&#x4E2D;&#x51FA;&#x73B0;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x9762;&#x503C;&#x5E38;&#x91CF;&#x4E00;&#x822C;&#x4E5F;&#x662F;UTF8&#x7F16;&#x7801;&#x7684;&#x3002;&#x6E90;&#x4EE3;&#x7801;&#x4E2D;&#x7684;&#x6587;&#x672C;&#x5B57;&#x7B26;&#x4E32;&#x901A;&#x5E38;&#x88AB;&#x89E3;&#x91CA;&#x4E3A;&#x91C7;&#x7528;UTF8&#x7F16;&#x7801;&#x7684;Unicode&#x7801;&#x70B9;&#xFF08;rune&#xFF09;&#x5E8F;&#x5217;&#x3002;&#x56E0;&#x4E3A;&#x5B57;&#x8282;&#x5E8F;&#x5217;&#x5BF9;&#x5E94;&#x7684;&#x662F;&#x53EA;&#x8BFB;&#x7684;&#x5B57;&#x8282;&#x5E8F;&#x5217;&#xFF0C;&#x56E0;&#x6B64;&#x5B57;&#x7B26;&#x4E32;&#x53EF;&#x4EE5;&#x5305;&#x542B;&#x4EFB;&#x610F;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x5305;&#x62EC;byte&#x503C;0&#x3002;&#x6211;&#x4EEC;&#x4E5F;&#x53EF;&#x4EE5;&#x7528;&#x5B57;&#x7B26;&#x4E32;&#x8868;&#x793A;GBK&#x7B49;&#x975E;UTF8&#x7F16;&#x7801;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x4E0D;&#x8FC7;&#x8FD9;&#x79CD;&#x65F6;&#x5019;&#x5C06;&#x5B57;&#x7B26;&#x4E32;&#x770B;&#x4F5C;&#x662F;&#x4E00;&#x4E2A;&#x53EA;&#x8BFB;&#x7684;&#x4E8C;&#x8FDB;&#x5236;&#x6570;&#x7EC4;&#x66F4;&#x51C6;&#x786E;&#xFF0C;&#x56E0;&#x4E3A;<code>for range</code>&#x7B49;&#x8BED;&#x6CD5;&#x5E76;&#x4E0D;&#x80FD;&#x652F;&#x6301;&#x975E;UTF8&#x7F16;&#x7801;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x904D;&#x5386;&#x3002;</p>
<p>Go&#x8BED;&#x8A00;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x5E95;&#x5C42;&#x7ED3;&#x6784;&#x5728;<code>reflect.StringHeader</code>&#x4E2D;&#x5B9A;&#x4E49;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">type</span> StringHeader <span class="hljs-keyword">struct</span> {
    Data <span class="hljs-keyword">uintptr</span>
    Len  <span class="hljs-keyword">int</span>
}
</code></pre>
<p>&#x5B57;&#x7B26;&#x4E32;&#x7ED3;&#x6784;&#x7531;&#x4E24;&#x4E2A;&#x4FE1;&#x606F;&#x7EC4;&#x6210;&#xFF1A;&#x7B2C;&#x4E00;&#x4E2A;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#x6307;&#x5411;&#x7684;&#x5E95;&#x5C42;&#x5B57;&#x8282;&#x6570;&#x7EC4;&#xFF0C;&#x7B2C;&#x4E8C;&#x4E2A;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x5B57;&#x8282;&#x7684;&#x957F;&#x5EA6;&#x3002;&#x5B57;&#x7B26;&#x4E32;&#x5176;&#x5B9E;&#x662F;&#x4E00;&#x4E2A;&#x7ED3;&#x6784;&#x4F53;&#xFF0C;&#x56E0;&#x6B64;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x8D4B;&#x503C;&#x64CD;&#x4F5C;&#x4E5F;&#x5C31;&#x662F;<code>reflect.StringHeader</code>&#x7ED3;&#x6784;&#x4F53;&#x7684;&#x590D;&#x5236;&#x8FC7;&#x7A0B;&#xFF0C;&#x5E76;&#x4E0D;&#x4F1A;&#x6D89;&#x53CA;&#x5E95;&#x5C42;&#x5B57;&#x8282;&#x6570;&#x7EC4;&#x7684;&#x590D;&#x5236;&#x3002;&#x5728;&#x524D;&#x9762;&#x6570;&#x7EC4;&#x4E00;&#x8282;&#x63D0;&#x5230;&#x7684;<code>[2]string</code>&#x5B57;&#x7B26;&#x4E32;&#x6570;&#x7EC4;&#x5BF9;&#x5E94;&#x7684;&#x5E95;&#x5C42;&#x7ED3;&#x6784;&#x548C;<code>[2]reflect.StringHeader</code>&#x5BF9;&#x5E94;&#x7684;&#x5E95;&#x5C42;&#x7ED3;&#x6784;&#x662F;&#x4E00;&#x6837;&#x7684;&#xFF0C;&#x53EF;&#x4EE5;&#x5C06;&#x5B57;&#x7B26;&#x4E32;&#x6570;&#x7EC4;&#x770B;&#x4F5C;&#x4E00;&#x4E2A;&#x7ED3;&#x6784;&#x4F53;&#x6570;&#x7EC4;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x770B;&#x5B57;&#x7B26;&#x4E32;&#x201C;Hello, world&#x201D;&#x672C;&#x8EAB;&#x5BF9;&#x5E94;&#x7684;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#xFF1A;</p>
<p><img src="../images/ch1.3-2-string-1.ditaa.png" alt=""></p>
<p><em>&#x56FE; 1.3-2 &#x5B57;&#x7B26;&#x4E32;&#x5E03;&#x5C40;</em></p>
<p>&#x5206;&#x6790;&#x53EF;&#x4EE5;&#x53D1;&#x73B0;&#xFF0C;&#x201C;Hello, world&#x201D;&#x5B57;&#x7B26;&#x4E32;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x548C;&#x4EE5;&#x4E0B;&#x6570;&#x7EC4;&#x662F;&#x5B8C;&#x5168;&#x4E00;&#x81F4;&#x7684;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> data = [...]<span class="hljs-keyword">byte</span>{<span class="hljs-string">&apos;h&apos;</span>, <span class="hljs-string">&apos;e&apos;</span>, <span class="hljs-string">&apos;l&apos;</span>, <span class="hljs-string">&apos;l&apos;</span>, <span class="hljs-string">&apos;o&apos;</span>, <span class="hljs-string">&apos;,&apos;</span>, <span class="hljs-string">&apos; &apos;</span>, <span class="hljs-string">&apos;w&apos;</span>, <span class="hljs-string">&apos;o&apos;</span>, <span class="hljs-string">&apos;r&apos;</span>, <span class="hljs-string">&apos;l&apos;</span>, <span class="hljs-string">&apos;d&apos;</span>}
</code></pre>
<p>&#x5B57;&#x7B26;&#x4E32;&#x867D;&#x7136;&#x4E0D;&#x662F;&#x5207;&#x7247;&#xFF0C;&#x4F46;&#x662F;&#x652F;&#x6301;&#x5207;&#x7247;&#x64CD;&#x4F5C;&#xFF0C;&#x4E0D;&#x540C;&#x4F4D;&#x7F6E;&#x7684;&#x5207;&#x7247;&#x5E95;&#x5C42;&#x4E5F;&#x8BBF;&#x95EE;&#x7684;&#x540C;&#x4E00;&#x5757;&#x5185;&#x5B58;&#x6570;&#x636E;&#xFF08;&#x56E0;&#x4E3A;&#x5B57;&#x7B26;&#x4E32;&#x662F;&#x53EA;&#x8BFB;&#x7684;&#xFF0C;&#x76F8;&#x540C;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x9762;&#x503C;&#x5E38;&#x91CF;&#x901A;&#x5E38;&#x662F;&#x5BF9;&#x5E94;&#x540C;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x5E38;&#x91CF;&#xFF09;&#xFF1A;</p>
<pre><code class="lang-go">s := <span class="hljs-string">&quot;hello, world&quot;</span>
hello := s[:<span class="hljs-number">5</span>]
world := s[<span class="hljs-number">7</span>:]

s1 := <span class="hljs-string">&quot;hello, world&quot;</span>[:<span class="hljs-number">5</span>]
s2 := <span class="hljs-string">&quot;hello, world&quot;</span>[<span class="hljs-number">7</span>:]
</code></pre>
<p>&#x5B57;&#x7B26;&#x4E32;&#x548C;&#x6570;&#x7EC4;&#x7C7B;&#x4F3C;&#xFF0C;&#x5185;&#x7F6E;&#x7684;<code>len</code>&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x957F;&#x5EA6;&#x3002;&#x4E5F;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;<code>reflect.StringHeader</code>&#x7ED3;&#x6784;&#x8BBF;&#x95EE;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x957F;&#x5EA6;&#xFF08;&#x8FD9;&#x91CC;&#x53EA;&#x662F;&#x4E3A;&#x4E86;&#x6F14;&#x793A;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x7ED3;&#x6784;&#xFF0C;&#x5E76;&#x4E0D;&#x662F;&#x63A8;&#x8350;&#x7684;&#x505A;&#x6CD5;&#xFF09;&#xFF1A;</p>
<pre><code class="lang-go">fmt.Println(<span class="hljs-string">&quot;len(s):&quot;</span>, (*reflect.StringHeader)(unsafe.Pointer(&amp;s)).Len)   <span class="hljs-comment">// 12</span>
fmt.Println(<span class="hljs-string">&quot;len(s1):&quot;</span>, (*reflect.StringHeader)(unsafe.Pointer(&amp;s1)).Len) <span class="hljs-comment">// 5</span>
fmt.Println(<span class="hljs-string">&quot;len(s2):&quot;</span>, (*reflect.StringHeader)(unsafe.Pointer(&amp;s2)).Len) <span class="hljs-comment">// 5</span>
</code></pre>
<p>&#x6839;&#x636E;Go&#x8BED;&#x8A00;&#x89C4;&#x8303;&#xFF0C;Go&#x8BED;&#x8A00;&#x7684;&#x6E90;&#x6587;&#x4EF6;&#x90FD;&#x662F;&#x91C7;&#x7528;UTF8&#x7F16;&#x7801;&#x3002;&#x56E0;&#x6B64;&#xFF0C;Go&#x6E90;&#x6587;&#x4EF6;&#x4E2D;&#x51FA;&#x73B0;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x9762;&#x503C;&#x5E38;&#x91CF;&#x4E00;&#x822C;&#x4E5F;&#x662F;UTF8&#x7F16;&#x7801;&#x7684;&#xFF08;&#x5BF9;&#x4E8E;&#x8F6C;&#x4E49;&#x5B57;&#x7B26;&#xFF0C;&#x5219;&#x6CA1;&#x6709;&#x8FD9;&#x4E2A;&#x9650;&#x5236;&#xFF09;&#x3002;&#x63D0;&#x5230;Go&#x5B57;&#x7B26;&#x4E32;&#x65F6;&#xFF0C;&#x6211;&#x4EEC;&#x4E00;&#x822C;&#x90FD;&#x4F1A;&#x5047;&#x8BBE;&#x5B57;&#x7B26;&#x4E32;&#x5BF9;&#x5E94;&#x7684;&#x662F;&#x4E00;&#x4E2A;&#x5408;&#x6CD5;&#x7684;UTF8&#x7F16;&#x7801;&#x7684;&#x5B57;&#x7B26;&#x5E8F;&#x5217;&#x3002;&#x53EF;&#x4EE5;&#x7528;&#x5185;&#x7F6E;&#x7684;<code>print</code>&#x8C03;&#x8BD5;&#x51FD;&#x6570;&#x6216;<code>fmt.Print</code>&#x51FD;&#x6570;&#x76F4;&#x63A5;&#x6253;&#x5370;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x7528;<code>for range</code>&#x5FAA;&#x73AF;&#x76F4;&#x63A5;&#x904D;&#x5386;UTF8&#x89E3;&#x7801;&#x540E;&#x7684;Unicode&#x7801;&#x70B9;&#x503C;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x7684;&#x201C;Hello, &#x4E16;&#x754C;&#x201D;&#x5B57;&#x7B26;&#x4E32;&#x4E2D;&#x5305;&#x542B;&#x4E86;&#x4E2D;&#x6587;&#x5B57;&#x7B26;&#xFF0C;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x6253;&#x5370;&#x8F6C;&#x578B;&#x4E3A;&#x5B57;&#x8282;&#x7C7B;&#x578B;&#x6765;&#x67E5;&#x770B;&#x5B57;&#x7B26;&#x5E95;&#x5C42;&#x5BF9;&#x5E94;&#x7684;&#x6570;&#x636E;&#xFF1A;</p>
<pre><code class="lang-go">fmt.Printf(<span class="hljs-string">&quot;%#v\n&quot;</span>, []<span class="hljs-keyword">byte</span>(<span class="hljs-string">&quot;Hello, &#x4E16;&#x754C;&quot;</span>))
</code></pre>
<p>&#x8F93;&#x51FA;&#x7684;&#x7ED3;&#x679C;&#x662F;&#xFF1A;</p>
<pre><code class="lang-go">[]<span class="hljs-keyword">byte</span>{<span class="hljs-number">0x48</span>, <span class="hljs-number">0x65</span>, <span class="hljs-number">0x6c</span>, <span class="hljs-number">0x6c</span>, <span class="hljs-number">0x6f</span>, <span class="hljs-number">0x2c</span>, <span class="hljs-number">0x20</span>, <span class="hljs-number">0xe4</span>, <span class="hljs-number">0xb8</span>, <span class="hljs-number">0x96</span>, <span class="hljs-number">0xe7</span>, <span class="hljs-number">0x95</span>, <span class="hljs-number">0x8c</span>}
</code></pre>
<p>&#x5206;&#x6790;&#x53EF;&#x4EE5;&#x53D1;&#x73B0;<code>0xe4, 0xb8, 0x96</code>&#x5BF9;&#x5E94;&#x4E2D;&#x6587;&#x201C;&#x4E16;&#x201D;&#xFF0C;<code>0xe7, 0x95, 0x8c</code>&#x5BF9;&#x5E94;&#x4E2D;&#x6587;&#x201C;&#x754C;&#x201D;&#x3002;&#x6211;&#x4EEC;&#x4E5F;&#x53EF;&#x4EE5;&#x5728;&#x5B57;&#x7B26;&#x4E32;&#x9762;&#x503C;&#x4E2D;&#x76F4;&#x6307;&#x5B9A;UTF8&#x7F16;&#x7801;&#x540E;&#x7684;&#x503C;&#xFF08;&#x6E90;&#x6587;&#x4EF6;&#x4E2D;&#x5168;&#x90E8;&#x662F;ASCII&#x7801;&#xFF0C;&#x53EF;&#x4EE5;&#x907F;&#x514D;&#x51FA;&#x73B0;&#x591A;&#x5B57;&#x8282;&#x7684;&#x5B57;&#x7B26;&#xFF09;&#x3002;</p>
<pre><code class="lang-go">fmt.Println(<span class="hljs-string">&quot;\xe4\xb8\x96&quot;</span>) <span class="hljs-comment">// &#x6253;&#x5370;: &#x4E16;</span>
fmt.Println(<span class="hljs-string">&quot;\xe7\x95\x8c&quot;</span>) <span class="hljs-comment">// &#x6253;&#x5370;: &#x754C;</span>
</code></pre>
<p>&#x4E0B;&#x56FE;&#x5C55;&#x793A;&#x4E86;&#x201C;Hello, &#x4E16;&#x754C;&#x201D;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#x5E03;&#x5C40;:</p>
<p><img src="../images/ch1.3-3-string-2.ditaa.png" alt=""></p>
<p><em>&#x56FE; 1.3-3 &#x5B57;&#x7B26;&#x4E32;&#x5E03;&#x5C40;</em></p>
<p>Go&#x8BED;&#x8A00;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x4E2D;&#x53EF;&#x4EE5;&#x5B58;&#x653E;&#x4EFB;&#x610F;&#x7684;&#x4E8C;&#x8FDB;&#x5236;&#x5B57;&#x8282;&#x5E8F;&#x5217;&#xFF0C;&#x800C;&#x4E14;&#x5373;&#x4F7F;&#x662F;UTF8&#x5B57;&#x7B26;&#x5E8F;&#x5217;&#x4E5F;&#x53EF;&#x80FD;&#x4F1A;&#x9047;&#x5230;&#x574F;&#x7684;&#x7F16;&#x7801;&#x3002;&#x5982;&#x679C;&#x9047;&#x5230;&#x4E00;&#x4E2A;&#x9519;&#x8BEF;&#x7684;UTF8&#x7F16;&#x7801;&#x8F93;&#x5165;&#xFF0C;&#x5C06;&#x751F;&#x6210;&#x4E00;&#x4E2A;&#x7279;&#x522B;&#x7684;Unicode&#x5B57;&#x7B26;&#x2018;\uFFFD&#x2019;&#xFF0C;&#x8FD9;&#x4E2A;&#x5B57;&#x7B26;&#x5728;&#x4E0D;&#x540C;&#x7684;&#x8F6F;&#x4EF6;&#x4E2D;&#x7684;&#x663E;&#x793A;&#x6548;&#x679C;&#x53EF;&#x80FD;&#x4E0D;&#x592A;&#x4E00;&#x6837;&#xFF0C;&#x5728;&#x5370;&#x5237;&#x4E2D;&#x8FD9;&#x4E2A;&#x7B26;&#x53F7;&#x901A;&#x5E38;&#x662F;&#x4E00;&#x4E2A;&#x9ED1;&#x8272;&#x516D;&#x89D2;&#x5F62;&#x6216;&#x94BB;&#x77F3;&#x5F62;&#x72B6;&#xFF0C;&#x91CC;&#x9762;&#x5305;&#x542B;&#x4E00;&#x4E2A;&#x767D;&#x8272;&#x7684;&#x95EE;&#x53F7;&#x2018;&#xFFFD;&#x2019;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x4E2D;&#xFF0C;&#x6211;&#x4EEC;&#x6545;&#x610F;&#x635F;&#x574F;&#x4E86;&#x7B2C;&#x4E00;&#x5B57;&#x7B26;&#x7684;&#x7B2C;&#x4E8C;&#x548C;&#x7B2C;&#x4E09;&#x5B57;&#x8282;&#xFF0C;&#x56E0;&#x6B64;&#x7B2C;&#x4E00;&#x5B57;&#x7B26;&#x5C06;&#x4F1A;&#x6253;&#x5370;&#x4E3A;&#x201C;&#xFFFD;&#x201D;&#xFF0C;&#x7B2C;&#x4E8C;&#x548C;&#x7B2C;&#x4E09;&#x5B57;&#x8282;&#x5219;&#x88AB;&#x5FFD;&#x7565;&#xFF0C;&#x540E;&#x9762;&#x7684;&#x201C;abc&#x201D;&#x4F9D;&#x7136;&#x53EF;&#x4EE5;&#x6B63;&#x5E38;&#x89E3;&#x7801;&#x6253;&#x5370;&#xFF08;&#x9519;&#x8BEF;&#x7F16;&#x7801;&#x4E0D;&#x4F1A;&#x5411;&#x540E;&#x6269;&#x6563;&#x662F;UTF8&#x7F16;&#x7801;&#x7684;&#x4F18;&#x79C0;&#x7279;&#x6027;&#x4E4B;&#x4E00;&#xFF09;&#x3002;</p>
<pre><code class="lang-go">fmt.Println(<span class="hljs-string">&quot;\xe4\x00\x00\xe7\x95\x8cabc&quot;</span>) <span class="hljs-comment">// &#xFFFD;&#x754C;abc</span>
</code></pre>
<p>&#x4E0D;&#x8FC7;&#x5728;<code>for range</code>&#x8FED;&#x4EE3;&#x8FD9;&#x4E2A;&#x542B;&#x6709;&#x635F;&#x574F;&#x7684;UTF8&#x5B57;&#x7B26;&#x4E32;&#x65F6;&#xFF0C;&#x7B2C;&#x4E00;&#x5B57;&#x7B26;&#x7684;&#x7B2C;&#x4E8C;&#x548C;&#x7B2C;&#x4E09;&#x5B57;&#x8282;&#x4F9D;&#x7136;&#x4F1A;&#x88AB;&#x5355;&#x72EC;&#x8FED;&#x4EE3;&#x5230;&#xFF0C;&#x4E0D;&#x8FC7;&#x6B64;&#x65F6;&#x8FED;&#x4EE3;&#x7684;&#x503C;&#x662F;&#x635F;&#x574F;&#x540E;&#x7684;0&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">for</span> i, c := <span class="hljs-keyword">range</span> <span class="hljs-string">&quot;\xe4\x00\x00\xe7\x95\x8cabc&quot;</span> {
    fmt.Println(i, c)
}
<span class="hljs-comment">// 0 65533  // \uFFFD, &#x5BF9;&#x5E94; &#xFFFD;</span>
<span class="hljs-comment">// 1 0      // &#x7A7A;&#x5B57;&#x7B26;</span>
<span class="hljs-comment">// 2 0      // &#x7A7A;&#x5B57;&#x7B26;</span>
<span class="hljs-comment">// 3 30028  // &#x754C;</span>
<span class="hljs-comment">// 6 97     // a</span>
<span class="hljs-comment">// 7 98     // b</span>
<span class="hljs-comment">// 8 99     // c</span>
</code></pre>
<p>&#x5982;&#x679C;&#x4E0D;&#x60F3;&#x89E3;&#x7801;UTF8&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x60F3;&#x76F4;&#x63A5;&#x904D;&#x5386;&#x539F;&#x59CB;&#x7684;&#x5B57;&#x8282;&#x7801;&#xFF0C;&#x53EF;&#x4EE5;&#x5C06;&#x5B57;&#x7B26;&#x4E32;&#x5F3A;&#x5236;&#x8F6C;&#x4E3A;<code>[]byte</code>&#x5B57;&#x8282;&#x5E8F;&#x5217;&#x540E;&#x518D;&#x884C;&#x904D;&#x5386;&#xFF08;&#x8FD9;&#x91CC;&#x7684;&#x8F6C;&#x6362;&#x4E00;&#x822C;&#x4E0D;&#x4F1A;&#x4EA7;&#x751F;&#x8FD0;&#x884C;&#x65F6;&#x5F00;&#x9500;&#xFF09;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">for</span> i, c := <span class="hljs-keyword">range</span> []<span class="hljs-keyword">byte</span>(<span class="hljs-string">&quot;&#x4E16;&#x754C;abc&quot;</span>) {
    fmt.Println(i, c)
}
</code></pre>
<p>&#x6216;&#x8005;&#x662F;&#x91C7;&#x7528;&#x4F20;&#x7EDF;&#x7684;&#x4E0B;&#x6807;&#x65B9;&#x5F0F;&#x904D;&#x5386;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x5B57;&#x8282;&#x6570;&#x7EC4;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">const</span> s = <span class="hljs-string">&quot;\xe4\x00\x00\xe7\x95\x8cabc&quot;</span>
<span class="hljs-keyword">for</span> i := <span class="hljs-number">0</span>; i &lt; <span class="hljs-built_in">len</span>(s); i++ {
    fmt.Printf(<span class="hljs-string">&quot;%d %x\n&quot;</span>, i, s[i])
}
</code></pre>
<p>Go&#x8BED;&#x8A00;&#x9664;&#x4E86;<code>for range</code>&#x8BED;&#x6CD5;&#x5BF9;UTF8&#x5B57;&#x7B26;&#x4E32;&#x63D0;&#x4F9B;&#x4E86;&#x7279;&#x6B8A;&#x652F;&#x6301;&#x5916;&#xFF0C;&#x8FD8;&#x5BF9;&#x5B57;&#x7B26;&#x4E32;&#x548C;<code>[]rune</code>&#x7C7B;&#x578B;&#x7684;&#x76F8;&#x4E92;&#x8F6C;&#x6362;&#x63D0;&#x4F9B;&#x4E86;&#x7279;&#x6B8A;&#x7684;&#x652F;&#x6301;&#x3002;</p>
<pre><code class="lang-go">fmt.Printf(<span class="hljs-string">&quot;%#v\n&quot;</span>, []<span class="hljs-keyword">rune</span>(<span class="hljs-string">&quot;&#x4E16;&#x754C;&quot;</span>))              <span class="hljs-comment">// []int32{19990, 30028}</span>
fmt.Printf(<span class="hljs-string">&quot;%#v\n&quot;</span>, <span class="hljs-keyword">string</span>([]<span class="hljs-keyword">rune</span>{<span class="hljs-string">&apos;&#x4E16;&apos;</span>, <span class="hljs-string">&apos;&#x754C;&apos;</span>})) <span class="hljs-comment">// &#x4E16;&#x754C;</span>
</code></pre>
<p>&#x4ECE;&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x7684;&#x8F93;&#x51FA;&#x7ED3;&#x679C;&#x6765;&#x770B;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x53D1;&#x73B0;<code>[]rune</code>&#x5176;&#x5B9E;&#x662F;<code>[]int32</code>&#x7C7B;&#x578B;&#xFF0C;&#x8FD9;&#x91CC;&#x7684;<code>rune</code>&#x53EA;&#x662F;<code>int32</code>&#x7C7B;&#x578B;&#x7684;&#x522B;&#x540D;&#xFF0C;&#x5E76;&#x4E0D;&#x662F;&#x91CD;&#x65B0;&#x5B9A;&#x4E49;&#x7684;&#x7C7B;&#x578B;&#x3002;<code>rune</code>&#x7528;&#x4E8E;&#x8868;&#x793A;&#x6BCF;&#x4E2A;Unicode&#x7801;&#x70B9;&#xFF0C;&#x76EE;&#x524D;&#x53EA;&#x4F7F;&#x7528;&#x4E86;21&#x4E2A;bit&#x4F4D;&#x3002;</p>
<p>&#x5B57;&#x7B26;&#x4E32;&#x76F8;&#x5173;&#x7684;&#x5F3A;&#x5236;&#x7C7B;&#x578B;&#x8F6C;&#x6362;&#x4E3B;&#x8981;&#x6D89;&#x53CA;&#x5230;<code>[]byte</code>&#x548C;<code>[]rune</code>&#x4E24;&#x79CD;&#x7C7B;&#x578B;&#x3002;&#x6BCF;&#x4E2A;&#x8F6C;&#x6362;&#x90FD;&#x53EF;&#x80FD;&#x9690;&#x542B;&#x91CD;&#x65B0;&#x5206;&#x914D;&#x5185;&#x5B58;&#x7684;&#x4EE3;&#x4EF7;&#xFF0C;&#x6700;&#x574F;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#x5B83;&#x4EEC;&#x7684;&#x8FD0;&#x7B97;&#x65F6;&#x95F4;&#x590D;&#x6742;&#x5EA6;&#x90FD;&#x662F;<code>O(n)</code>&#x3002;&#x4E0D;&#x8FC7;&#x5B57;&#x7B26;&#x4E32;&#x548C;<code>[]rune</code>&#x7684;&#x8F6C;&#x6362;&#x8981;&#x66F4;&#x4E3A;&#x7279;&#x6B8A;&#x4E00;&#x4E9B;&#xFF0C;&#x56E0;&#x4E3A;&#x4E00;&#x822C;&#x8FD9;&#x79CD;&#x5F3A;&#x5236;&#x7C7B;&#x578B;&#x8F6C;&#x6362;&#x8981;&#x6C42;&#x4E24;&#x4E2A;&#x7C7B;&#x578B;&#x7684;&#x5E95;&#x5C42;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#x8981;&#x5C3D;&#x91CF;&#x4E00;&#x81F4;&#xFF0C;&#x663E;&#x7136;&#x5B83;&#x4EEC;&#x5E95;&#x5C42;&#x5BF9;&#x5E94;&#x7684;<code>[]byte</code>&#x548C;<code>[]int32</code>&#x7C7B;&#x578B;&#x662F;&#x5B8C;&#x5168;&#x4E0D;&#x540C;&#x7684;&#x5185;&#x90E8;&#x5E03;&#x5C40;&#xFF0C;&#x56E0;&#x6B64;&#x8FD9;&#x79CD;&#x8F6C;&#x6362;&#x53EF;&#x80FD;&#x9690;&#x542B;&#x91CD;&#x65B0;&#x5206;&#x914D;&#x5185;&#x5B58;&#x7684;&#x64CD;&#x4F5C;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x5206;&#x522B;&#x7528;&#x4F2A;&#x4EE3;&#x7801;&#x7B80;&#x5355;&#x6A21;&#x62DF;Go&#x8BED;&#x8A00;&#x5BF9;&#x5B57;&#x7B26;&#x4E32;&#x5185;&#x7F6E;&#x7684;&#x4E00;&#x4E9B;&#x64CD;&#x4F5C;&#xFF0C;&#x8FD9;&#x6837;&#x5BF9;&#x6BCF;&#x4E2A;&#x64CD;&#x4F5C;&#x7684;&#x5904;&#x7406;&#x7684;&#x65F6;&#x95F4;&#x590D;&#x6742;&#x5EA6;&#x548C;&#x7A7A;&#x95F4;&#x590D;&#x6742;&#x5EA6;&#x90FD;&#x4F1A;&#x6709;&#x8F83;&#x660E;&#x786E;&#x7684;&#x8BA4;&#x8BC6;&#x3002;</p>
<p><strong><code>for range</code>&#x5BF9;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x8FED;&#x4EE3;&#x6A21;&#x62DF;&#x5B9E;&#x73B0;</strong></p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> forOnString(s <span class="hljs-keyword">string</span>, forBody <span class="hljs-keyword">func</span>(i <span class="hljs-keyword">int</span>, r <span class="hljs-keyword">rune</span>)) {
    <span class="hljs-keyword">for</span> i := <span class="hljs-number">0</span>; <span class="hljs-built_in">len</span>(s) &gt; <span class="hljs-number">0</span>; {
        r, size := utf8.DecodeRuneInString(s)
        forBody(i, r)
        s = s[size:]
        i += size
    }
}
</code></pre>
<p><code>for range</code>&#x8FED;&#x4EE3;&#x5B57;&#x7B26;&#x4E32;&#x65F6;&#xFF0C;&#x6BCF;&#x6B21;&#x89E3;&#x7801;&#x4E00;&#x4E2A;Unicode&#x5B57;&#x7B26;&#xFF0C;&#x7136;&#x540E;&#x8FDB;&#x5165;<code>for</code>&#x5FAA;&#x73AF;&#x4F53;&#xFF0C;&#x9047;&#x5230;&#x5D29;&#x574F;&#x7684;&#x7F16;&#x7801;&#x5E76;&#x4E0D;&#x4F1A;&#x5BFC;&#x81F4;&#x8FED;&#x4EE3;&#x505C;&#x6B62;&#x3002;</p>
<p><strong><code>[]byte(s)</code>&#x8F6C;&#x6362;&#x6A21;&#x62DF;&#x5B9E;&#x73B0;</strong></p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> str2bytes(s <span class="hljs-keyword">string</span>) []<span class="hljs-keyword">byte</span> {
    p := <span class="hljs-built_in">make</span>([]<span class="hljs-keyword">byte</span>, <span class="hljs-built_in">len</span>(s))
    <span class="hljs-keyword">for</span> i := <span class="hljs-number">0</span>; i &lt; <span class="hljs-built_in">len</span>(s); i++ {
        c := s[i]
        p[i] = c
    }
    <span class="hljs-keyword">return</span> p
}
</code></pre>
<p>&#x6A21;&#x62DF;&#x5B9E;&#x73B0;&#x4E2D;&#x65B0;&#x521B;&#x5EFA;&#x4E86;&#x4E00;&#x4E2A;&#x5207;&#x7247;&#xFF0C;&#x7136;&#x540E;&#x5C06;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x6570;&#x7EC4;&#x9010;&#x4E00;&#x590D;&#x5236;&#x5230;&#x4E86;&#x5207;&#x7247;&#x4E2D;&#xFF0C;&#x8FD9;&#x662F;&#x4E3A;&#x4E86;&#x4FDD;&#x8BC1;&#x5B57;&#x7B26;&#x4E32;&#x53EA;&#x8BFB;&#x7684;&#x8BED;&#x4E49;&#x3002;&#x5F53;&#x7136;&#xFF0C;&#x5728;&#x5C06;&#x5B57;&#x7B26;&#x4E32;&#x8F6C;&#x4E3A;<code>[]byte</code>&#x65F6;&#xFF0C;&#x5982;&#x679C;&#x8F6C;&#x6362;&#x540E;&#x7684;&#x53D8;&#x91CF;&#x5E76;&#x6CA1;&#x6709;&#x88AB;&#x4FEE;&#x6539;&#x7684;&#x60C5;&#x5F62;&#xFF0C;&#x7F16;&#x8BD1;&#x5668;&#x53EF;&#x80FD;&#x4F1A;&#x76F4;&#x63A5;&#x8FD4;&#x56DE;&#x539F;&#x59CB;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x5BF9;&#x5E94;&#x7684;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x3002;</p>
<p><strong><code>string(bytes)</code>&#x8F6C;&#x6362;&#x6A21;&#x62DF;&#x5B9E;&#x73B0;</strong></p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> bytes2str(s []<span class="hljs-keyword">byte</span>) (p <span class="hljs-keyword">string</span>) {
    data := <span class="hljs-built_in">make</span>([]<span class="hljs-keyword">byte</span>, <span class="hljs-built_in">len</span>(s))
    <span class="hljs-keyword">for</span> i, c := <span class="hljs-keyword">range</span> s {
        data[i] = c
    }

    hdr := (*reflect.StringHeader)(unsafe.Pointer(&amp;p))
    hdr.Data = <span class="hljs-keyword">uintptr</span>(unsafe.Pointer(&amp;data[<span class="hljs-number">0</span>]))
    hdr.Len = <span class="hljs-built_in">len</span>(s)

    <span class="hljs-keyword">return</span> p
}
</code></pre>
<p>&#x56E0;&#x4E3A;Go&#x8BED;&#x8A00;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x662F;&#x53EA;&#x8BFB;&#x7684;&#xFF0C;&#x65E0;&#x6CD5;&#x76F4;&#x63A5;&#x540C;&#x6784;&#x6784;&#x9020;&#x5E95;&#x5C42;&#x5B57;&#x8282;&#x6570;&#x7EC4;&#x751F;&#x6210;&#x5B57;&#x7B26;&#x4E32;&#x3002;&#x5728;&#x6A21;&#x62DF;&#x5B9E;&#x73B0;&#x4E2D;&#x901A;&#x8FC7;<code>unsafe</code>&#x5305;&#x83B7;&#x53D6;&#x4E86;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x7ED3;&#x6784;&#xFF0C;&#x7136;&#x540E;&#x5C06;&#x5207;&#x7247;&#x7684;&#x6570;&#x636E;&#x9010;&#x4E00;&#x590D;&#x5236;&#x5230;&#x4E86;&#x5B57;&#x7B26;&#x4E32;&#x4E2D;&#xFF0C;&#x8FD9;&#x540C;&#x6837;&#x662F;&#x4E3A;&#x4E86;&#x4FDD;&#x8BC1;&#x5B57;&#x7B26;&#x4E32;&#x53EA;&#x8BFB;&#x7684;&#x8BED;&#x4E49;&#x4E0D;&#x4F1A;&#x53D7;&#x5207;&#x7247;&#x7684;&#x5F71;&#x54CD;&#x3002;&#x5982;&#x679C;&#x8F6C;&#x6362;&#x540E;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x5728;&#x751F;&#x547D;&#x5468;&#x671F;&#x4E2D;&#x539F;&#x59CB;&#x7684;<code>[]byte</code>&#x7684;&#x53D8;&#x91CF;&#x5E76;&#x4E0D;&#x4F1A;&#x53D1;&#x751F;&#x53D8;&#x5316;&#xFF0C;&#x7F16;&#x8BD1;&#x5668;&#x53EF;&#x80FD;&#x4F1A;&#x76F4;&#x63A5;&#x57FA;&#x4E8E;<code>[]byte</code>&#x5E95;&#x5C42;&#x7684;&#x6570;&#x636E;&#x6784;&#x5EFA;&#x5B57;&#x7B26;&#x4E32;&#x3002;</p>
<p><strong><code>[]rune(s)</code>&#x8F6C;&#x6362;&#x6A21;&#x62DF;&#x5B9E;&#x73B0;</strong></p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> str2runes(s []<span class="hljs-keyword">byte</span>) []<span class="hljs-keyword">rune</span> {
    <span class="hljs-keyword">var</span> p []<span class="hljs-keyword">int32</span>
    <span class="hljs-keyword">for</span> <span class="hljs-built_in">len</span>(s) &gt; <span class="hljs-number">0</span> {
        r, size := utf8.DecodeRuneInString(s)
        p = <span class="hljs-built_in">append</span>(p, r)
        s = s[size:]
    }
    <span class="hljs-keyword">return</span> []<span class="hljs-keyword">rune</span>(p)
}
</code></pre>
<p>&#x56E0;&#x4E3A;&#x5E95;&#x5C42;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#x7684;&#x5DEE;&#x5F02;&#xFF0C;&#x5B57;&#x7B26;&#x4E32;&#x5230;<code>[]rune</code>&#x7684;&#x8F6C;&#x6362;&#x5FC5;&#x7136;&#x4F1A;&#x5BFC;&#x81F4;&#x91CD;&#x65B0;&#x5206;&#x914D;<code>[]rune</code>&#x5185;&#x5B58;&#x7A7A;&#x95F4;&#xFF0C;&#x7136;&#x540E;&#x4F9D;&#x6B21;&#x89E3;&#x7801;&#x5E76;&#x590D;&#x5236;&#x5BF9;&#x5E94;&#x7684;Unicode&#x7801;&#x70B9;&#x503C;&#x3002;&#x8FD9;&#x79CD;&#x5F3A;&#x5236;&#x8F6C;&#x6362;&#x5E76;&#x4E0D;&#x5B58;&#x5728;&#x524D;&#x9762;&#x63D0;&#x5230;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x548C;&#x5B57;&#x8282;&#x5207;&#x7247;&#x8F6C;&#x5316;&#x65F6;&#x7684;&#x4F18;&#x5316;&#x60C5;&#x51B5;&#x3002;</p>
<p><strong><code>string(runes)</code>&#x8F6C;&#x6362;&#x6A21;&#x62DF;&#x5B9E;&#x73B0;</strong></p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> runes2string(s []<span class="hljs-keyword">int32</span>) <span class="hljs-keyword">string</span> {
    <span class="hljs-keyword">var</span> p []<span class="hljs-keyword">byte</span>
    buf := <span class="hljs-built_in">make</span>([]<span class="hljs-keyword">byte</span>, <span class="hljs-number">3</span>)
    <span class="hljs-keyword">for</span> _, r := <span class="hljs-keyword">range</span> s {
        n := utf8.EncodeRune(buf, r)
        p = <span class="hljs-built_in">append</span>(p, buf[:n]...)
    }
    <span class="hljs-keyword">return</span> <span class="hljs-keyword">string</span>(p)
}
</code></pre>
<p>&#x540C;&#x6837;&#x56E0;&#x4E3A;&#x5E95;&#x5C42;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#x7684;&#x5DEE;&#x5F02;&#xFF0C;<code>[]rune</code>&#x5230;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x8F6C;&#x6362;&#x4E5F;&#x5FC5;&#x7136;&#x4F1A;&#x5BFC;&#x81F4;&#x91CD;&#x65B0;&#x6784;&#x9020;&#x5B57;&#x7B26;&#x4E32;&#x3002;&#x8FD9;&#x79CD;&#x5F3A;&#x5236;&#x8F6C;&#x6362;&#x5E76;&#x4E0D;&#x5B58;&#x5728;&#x524D;&#x9762;&#x63D0;&#x5230;&#x7684;&#x4F18;&#x5316;&#x60C5;&#x51B5;&#x3002;</p>
<h2 id="133-&#x5207;&#x7247;slice">1.3.3 &#x5207;&#x7247;(slice)</h2>
<p>&#x7B80;&#x5355;&#x5730;&#x8BF4;&#xFF0C;&#x5207;&#x7247;&#x5C31;&#x662F;&#x4E00;&#x79CD;&#x7B80;&#x5316;&#x7248;&#x7684;&#x52A8;&#x6001;&#x6570;&#x7EC4;&#x3002;&#x56E0;&#x4E3A;&#x52A8;&#x6001;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x662F;&#x4E0D;&#x56FA;&#x5B9A;&#xFF0C;&#x5207;&#x7247;&#x7684;&#x957F;&#x5EA6;&#x81EA;&#x7136;&#x4E5F;&#x5C31;&#x4E0D;&#x80FD;&#x662F;&#x7C7B;&#x578B;&#x7684;&#x7EC4;&#x6210;&#x90E8;&#x5206;&#x4E86;&#x3002;&#x6570;&#x7EC4;&#x867D;&#x7136;&#x6709;&#x9002;&#x7528;&#x5B83;&#x4EEC;&#x7684;&#x5730;&#x65B9;&#xFF0C;&#x4F46;&#x662F;&#x6570;&#x7EC4;&#x7684;&#x7C7B;&#x578B;&#x548C;&#x64CD;&#x4F5C;&#x90FD;&#x4E0D;&#x591F;&#x7075;&#x6D3B;&#xFF0C;&#x56E0;&#x6B64;&#x5728;Go&#x4EE3;&#x7801;&#x4E2D;&#x6570;&#x7EC4;&#x4F7F;&#x7528;&#x7684;&#x5E76;&#x4E0D;&#x591A;&#x3002;&#x800C;&#x5207;&#x7247;&#x5219;&#x4F7F;&#x7528;&#x5F97;&#x76F8;&#x5F53;&#x5E7F;&#x6CDB;&#xFF0C;&#x7406;&#x89E3;&#x5207;&#x7247;&#x7684;&#x539F;&#x7406;&#x548C;&#x7528;&#x6CD5;&#x662F;&#x4E00;&#x4E2A;Go&#x7A0B;&#x5E8F;&#x5458;&#x7684;&#x5FC5;&#x5907;&#x6280;&#x80FD;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x5148;&#x770B;&#x770B;&#x5207;&#x7247;&#x7684;&#x7ED3;&#x6784;&#x5B9A;&#x4E49;&#xFF0C;<code>reflect.SliceHeader</code>&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">type</span> SliceHeader <span class="hljs-keyword">struct</span> {
    Data <span class="hljs-keyword">uintptr</span>
    Len  <span class="hljs-keyword">int</span>
    Cap  <span class="hljs-keyword">int</span>
}
</code></pre>
<p>&#x53EF;&#x4EE5;&#x770B;&#x51FA;&#x5207;&#x7247;&#x7684;&#x5F00;&#x5934;&#x90E8;&#x5206;&#x548C;Go&#x5B57;&#x7B26;&#x4E32;&#x662F;&#x4E00;&#x6837;&#x7684;&#xFF0C;&#x4F46;&#x662F;&#x5207;&#x7247;&#x591A;&#x4E86;&#x4E00;&#x4E2A;<code>Cap</code>&#x6210;&#x5458;&#x8868;&#x793A;&#x5207;&#x7247;&#x6307;&#x5411;&#x7684;&#x5185;&#x5B58;&#x7A7A;&#x95F4;&#x7684;&#x6700;&#x5927;&#x5BB9;&#x91CF;&#xFF08;&#x5BF9;&#x5E94;&#x5143;&#x7D20;&#x7684;&#x4E2A;&#x6570;&#xFF0C;&#x800C;&#x4E0D;&#x662F;&#x5B57;&#x8282;&#x6570;&#xFF09;&#x3002;&#x4E0B;&#x56FE;&#x662F;<code>x := []int{2,3,5,7,11}</code>&#x548C;<code>y := x[1:3]</code>&#x4E24;&#x4E2A;&#x5207;&#x7247;&#x5BF9;&#x5E94;&#x7684;&#x5185;&#x5B58;&#x7ED3;&#x6784;&#x3002;</p>
<p><img src="../images/ch1.3-4-slice-1.ditaa.png" alt=""></p>
<p><em>&#x56FE; 1.3-4 &#x5207;&#x7247;&#x5E03;&#x5C40;</em></p>
<p>&#x8BA9;&#x6211;&#x4EEC;&#x770B;&#x770B;&#x5207;&#x7247;&#x6709;&#x54EA;&#x4E9B;&#x5B9A;&#x4E49;&#x65B9;&#x5F0F;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> (
    a []<span class="hljs-keyword">int</span>               <span class="hljs-comment">// nil&#x5207;&#x7247;, &#x548C; nil &#x76F8;&#x7B49;, &#x4E00;&#x822C;&#x7528;&#x6765;&#x8868;&#x793A;&#x4E00;&#x4E2A;&#x4E0D;&#x5B58;&#x5728;&#x7684;&#x5207;&#x7247;</span>
    b = []<span class="hljs-keyword">int</span>{}           <span class="hljs-comment">// &#x7A7A;&#x5207;&#x7247;, &#x548C; nil &#x4E0D;&#x76F8;&#x7B49;, &#x4E00;&#x822C;&#x7528;&#x6765;&#x8868;&#x793A;&#x4E00;&#x4E2A;&#x7A7A;&#x7684;&#x96C6;&#x5408;</span>
    c = []<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>}    <span class="hljs-comment">// &#x6709;3&#x4E2A;&#x5143;&#x7D20;&#x7684;&#x5207;&#x7247;, len&#x548C;cap&#x90FD;&#x4E3A;3</span>
    d = c[:<span class="hljs-number">2</span>]             <span class="hljs-comment">// &#x6709;2&#x4E2A;&#x5143;&#x7D20;&#x7684;&#x5207;&#x7247;, len&#x4E3A;2, cap&#x4E3A;3</span>
    e = c[<span class="hljs-number">0</span>:<span class="hljs-number">2</span>:<span class="hljs-built_in">cap</span>(c)]     <span class="hljs-comment">// &#x6709;2&#x4E2A;&#x5143;&#x7D20;&#x7684;&#x5207;&#x7247;, len&#x4E3A;2, cap&#x4E3A;3</span>
    f = c[:<span class="hljs-number">0</span>]             <span class="hljs-comment">// &#x6709;0&#x4E2A;&#x5143;&#x7D20;&#x7684;&#x5207;&#x7247;, len&#x4E3A;0, cap&#x4E3A;3</span>
    g = <span class="hljs-built_in">make</span>([]<span class="hljs-keyword">int</span>, <span class="hljs-number">3</span>)    <span class="hljs-comment">// &#x6709;3&#x4E2A;&#x5143;&#x7D20;&#x7684;&#x5207;&#x7247;, len&#x548C;cap&#x90FD;&#x4E3A;3</span>
    h = <span class="hljs-built_in">make</span>([]<span class="hljs-keyword">int</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>) <span class="hljs-comment">// &#x6709;2&#x4E2A;&#x5143;&#x7D20;&#x7684;&#x5207;&#x7247;, len&#x4E3A;2, cap&#x4E3A;3</span>
    i = <span class="hljs-built_in">make</span>([]<span class="hljs-keyword">int</span>, <span class="hljs-number">0</span>, <span class="hljs-number">3</span>) <span class="hljs-comment">// &#x6709;0&#x4E2A;&#x5143;&#x7D20;&#x7684;&#x5207;&#x7247;, len&#x4E3A;0, cap&#x4E3A;3</span>
)
</code></pre>
<p>&#x548C;&#x6570;&#x7EC4;&#x4E00;&#x6837;&#xFF0C;&#x5185;&#x7F6E;&#x7684;<code>len</code>&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x5207;&#x7247;&#x4E2D;&#x6709;&#x6548;&#x5143;&#x7D20;&#x7684;&#x957F;&#x5EA6;&#xFF0C;&#x5185;&#x7F6E;&#x7684;<code>cap</code>&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x5207;&#x7247;&#x5BB9;&#x91CF;&#x5927;&#x5C0F;&#xFF0C;&#x5BB9;&#x91CF;&#x5FC5;&#x987B;&#x5927;&#x4E8E;&#x6216;&#x7B49;&#x4E8E;&#x5207;&#x7247;&#x7684;&#x957F;&#x5EA6;&#x3002;&#x4E5F;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;<code>reflect.SliceHeader</code>&#x7ED3;&#x6784;&#x8BBF;&#x95EE;&#x5207;&#x7247;&#x7684;&#x4FE1;&#x606F;&#xFF08;&#x53EA;&#x662F;&#x4E3A;&#x4E86;&#x8BF4;&#x660E;&#x5207;&#x7247;&#x7684;&#x7ED3;&#x6784;&#xFF0C;&#x5E76;&#x4E0D;&#x662F;&#x63A8;&#x8350;&#x7684;&#x505A;&#x6CD5;&#xFF09;&#x3002;&#x5207;&#x7247;&#x53EF;&#x4EE5;&#x548C;<code>nil</code>&#x8FDB;&#x884C;&#x6BD4;&#x8F83;&#xFF0C;&#x53EA;&#x6709;&#x5F53;&#x5207;&#x7247;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x6307;&#x9488;&#x4E3A;&#x7A7A;&#x65F6;&#x5207;&#x7247;&#x672C;&#x8EAB;&#x4E3A;<code>nil</code>&#xFF0C;&#x8FD9;&#x65F6;&#x5019;&#x5207;&#x7247;&#x7684;&#x957F;&#x5EA6;&#x548C;&#x5BB9;&#x91CF;&#x4FE1;&#x606F;&#x5C06;&#x662F;&#x65E0;&#x6548;&#x7684;&#x3002;&#x5982;&#x679C;&#x6709;&#x5207;&#x7247;&#x7684;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x6307;&#x9488;&#x4E3A;&#x7A7A;&#xFF0C;&#x4F46;&#x662F;&#x957F;&#x5EA6;&#x548C;&#x5BB9;&#x91CF;&#x4E0D;&#x4E3A;0&#x7684;&#x60C5;&#x51B5;&#xFF0C;&#x90A3;&#x4E48;&#x8BF4;&#x660E;&#x5207;&#x7247;&#x672C;&#x8EAB;&#x5DF2;&#x7ECF;&#x88AB;&#x635F;&#x574F;&#x4E86;&#xFF08;&#x6BD4;&#x5982;&#x76F4;&#x63A5;&#x901A;&#x8FC7;<code>reflect.SliceHeader</code>&#x6216;<code>unsafe</code>&#x5305;&#x5BF9;&#x5207;&#x7247;&#x4F5C;&#x4E86;&#x4E0D;&#x6B63;&#x786E;&#x7684;&#x4FEE;&#x6539;&#xFF09;&#x3002;</p>
<p>&#x904D;&#x5386;&#x5207;&#x7247;&#x7684;&#x65B9;&#x5F0F;&#x548C;&#x904D;&#x5386;&#x6570;&#x7EC4;&#x7684;&#x65B9;&#x5F0F;&#x7C7B;&#x4F3C;&#xFF1A;</p>
<pre><code class="lang-go">    <span class="hljs-keyword">for</span> i := <span class="hljs-keyword">range</span> a {
        fmt.Printf(<span class="hljs-string">&quot;a[%d]: %d\n&quot;</span>, i, a[i])
    }
    <span class="hljs-keyword">for</span> i, v := <span class="hljs-keyword">range</span> b {
        fmt.Printf(<span class="hljs-string">&quot;b[%d]: %d\n&quot;</span>, i, v)
    }
    <span class="hljs-keyword">for</span> i := <span class="hljs-number">0</span>; i &lt; <span class="hljs-built_in">len</span>(c); i++ {
        fmt.Printf(<span class="hljs-string">&quot;c[%d]: %d\n&quot;</span>, i, c[i])
    }
</code></pre>
<p>&#x5176;&#x5B9E;&#x9664;&#x4E86;&#x904D;&#x5386;&#x4E4B;&#x5916;&#xFF0C;&#x53EA;&#x8981;&#x662F;&#x5207;&#x7247;&#x7684;&#x5E95;&#x5C42;&#x6570;&#x636E;&#x6307;&#x9488;&#x3001;&#x957F;&#x5EA6;&#x548C;&#x5BB9;&#x91CF;&#x6CA1;&#x6709;&#x53D1;&#x751F;&#x53D8;&#x5316;&#x7684;&#x8BDD;&#xFF0C;&#x5BF9;&#x5207;&#x7247;&#x7684;&#x904D;&#x5386;&#x3001;&#x5143;&#x7D20;&#x7684;&#x8BFB;&#x53D6;&#x548C;&#x4FEE;&#x6539;&#x90FD;&#x548C;&#x6570;&#x7EC4;&#x662F;&#x4E00;&#x6837;&#x7684;&#x3002;&#x5728;&#x5BF9;&#x5207;&#x7247;&#x672C;&#x8EAB;&#x8D4B;&#x503C;&#x6216;&#x53C2;&#x6570;&#x4F20;&#x9012;&#x65F6;&#xFF0C;&#x548C;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x7684;&#x64CD;&#x4F5C;&#x65B9;&#x5F0F;&#x7C7B;&#x4F3C;&#xFF0C;&#x53EA;&#x662F;&#x590D;&#x5236;&#x5207;&#x7247;&#x5934;&#x4FE1;&#x606F;&#xFF08;<code>reflect.SliceHeader</code>&#xFF09;&#xFF0C;&#x5E76;&#x4E0D;&#x4F1A;&#x590D;&#x5236;&#x5E95;&#x5C42;&#x7684;&#x6570;&#x636E;&#x3002;&#x5BF9;&#x4E8E;&#x7C7B;&#x578B;&#xFF0C;&#x548C;&#x6570;&#x7EC4;&#x7684;&#x6700;&#x5927;&#x4E0D;&#x540C;&#x662F;&#xFF0C;&#x5207;&#x7247;&#x7684;&#x7C7B;&#x578B;&#x548C;&#x957F;&#x5EA6;&#x4FE1;&#x606F;&#x65E0;&#x5173;&#xFF0C;&#x53EA;&#x8981;&#x662F;&#x76F8;&#x540C;&#x7C7B;&#x578B;&#x5143;&#x7D20;&#x6784;&#x6210;&#x7684;&#x5207;&#x7247;&#x5747;&#x5BF9;&#x5E94;&#x76F8;&#x540C;&#x7684;&#x5207;&#x7247;&#x7C7B;&#x578B;&#x3002;</p>
<p>&#x5982;&#x524D;&#x6240;&#x8BF4;&#xFF0C;&#x5207;&#x7247;&#x662F;&#x4E00;&#x79CD;&#x7B80;&#x5316;&#x7248;&#x7684;&#x52A8;&#x6001;&#x6570;&#x7EC4;&#xFF0C;&#x8FD9;&#x662F;&#x5207;&#x7247;&#x7C7B;&#x578B;&#x7684;&#x7075;&#x9B42;&#x3002;&#x9664;&#x4E86;&#x6784;&#x9020;&#x5207;&#x7247;&#x548C;&#x904D;&#x5386;&#x5207;&#x7247;&#x4E4B;&#x5916;&#xFF0C;&#x6DFB;&#x52A0;&#x5207;&#x7247;&#x5143;&#x7D20;&#x3001;&#x5220;&#x9664;&#x5207;&#x7247;&#x5143;&#x7D20;&#x90FD;&#x662F;&#x5207;&#x7247;&#x5904;&#x7406;&#x4E2D;&#x7ECF;&#x5E38;&#x9047;&#x5230;&#x7684;&#x95EE;&#x9898;&#x3002;</p>
<p><strong>&#x6DFB;&#x52A0;&#x5207;&#x7247;&#x5143;&#x7D20;</strong></p>
<p>&#x5185;&#x7F6E;&#x7684;&#x6CDB;&#x578B;&#x51FD;&#x6570;<code>append</code>&#x53EF;&#x4EE5;&#x5728;&#x5207;&#x7247;&#x7684;&#x5C3E;&#x90E8;&#x8FFD;&#x52A0;<code>N</code>&#x4E2A;&#x5143;&#x7D20;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a []<span class="hljs-keyword">int</span>
a = <span class="hljs-built_in">append</span>(a, <span class="hljs-number">1</span>)               <span class="hljs-comment">// &#x8FFD;&#x52A0;1&#x4E2A;&#x5143;&#x7D20;</span>
a = <span class="hljs-built_in">append</span>(a, <span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>)         <span class="hljs-comment">// &#x8FFD;&#x52A0;&#x591A;&#x4E2A;&#x5143;&#x7D20;, &#x624B;&#x5199;&#x89E3;&#x5305;&#x65B9;&#x5F0F;</span>
a = <span class="hljs-built_in">append</span>(a, []<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>,<span class="hljs-number">2</span>,<span class="hljs-number">3</span>}...) <span class="hljs-comment">// &#x8FFD;&#x52A0;&#x4E00;&#x4E2A;&#x5207;&#x7247;, &#x5207;&#x7247;&#x9700;&#x8981;&#x89E3;&#x5305;</span>
</code></pre>
<p>&#x4E0D;&#x8FC7;&#x8981;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;&#x5728;&#x5BB9;&#x91CF;&#x4E0D;&#x8DB3;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;<code>append</code>&#x7684;&#x64CD;&#x4F5C;&#x4F1A;&#x5BFC;&#x81F4;&#x91CD;&#x65B0;&#x5206;&#x914D;&#x5185;&#x5B58;&#xFF0C;&#x53EF;&#x80FD;&#x5BFC;&#x81F4;&#x5DE8;&#x5927;&#x7684;&#x5185;&#x5B58;&#x5206;&#x914D;&#x548C;&#x590D;&#x5236;&#x6570;&#x636E;&#x4EE3;&#x4EF7;&#x3002;&#x5373;&#x4F7F;&#x5BB9;&#x91CF;&#x8DB3;&#x591F;&#xFF0C;&#x4F9D;&#x7136;&#x9700;&#x8981;&#x7528;<code>append</code>&#x51FD;&#x6570;&#x7684;&#x8FD4;&#x56DE;&#x503C;&#x6765;&#x66F4;&#x65B0;&#x5207;&#x7247;&#x672C;&#x8EAB;&#xFF0C;&#x56E0;&#x4E3A;&#x65B0;&#x5207;&#x7247;&#x7684;&#x957F;&#x5EA6;&#x5DF2;&#x7ECF;&#x53D1;&#x751F;&#x4E86;&#x53D8;&#x5316;&#x3002;</p>
<p>&#x9664;&#x4E86;&#x5728;&#x5207;&#x7247;&#x7684;&#x5C3E;&#x90E8;&#x8FFD;&#x52A0;&#xFF0C;&#x6211;&#x4EEC;&#x8FD8;&#x53EF;&#x4EE5;&#x5728;&#x5207;&#x7247;&#x7684;&#x5F00;&#x5934;&#x6DFB;&#x52A0;&#x5143;&#x7D20;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a = []<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>,<span class="hljs-number">2</span>,<span class="hljs-number">3</span>}
a = <span class="hljs-built_in">append</span>([]<span class="hljs-keyword">int</span>{<span class="hljs-number">0</span>}, a...)        <span class="hljs-comment">// &#x5728;&#x5F00;&#x5934;&#x6DFB;&#x52A0;1&#x4E2A;&#x5143;&#x7D20;</span>
a = <span class="hljs-built_in">append</span>([]<span class="hljs-keyword">int</span>{<span class="hljs-number">-3</span>,<span class="hljs-number">-2</span>,<span class="hljs-number">-1</span>}, a...) <span class="hljs-comment">// &#x5728;&#x5F00;&#x5934;&#x6DFB;&#x52A0;1&#x4E2A;&#x5207;&#x7247;</span>
</code></pre>
<p>&#x5728;&#x5F00;&#x5934;&#x4E00;&#x822C;&#x90FD;&#x4F1A;&#x5BFC;&#x81F4;&#x5185;&#x5B58;&#x7684;&#x91CD;&#x65B0;&#x5206;&#x914D;&#xFF0C;&#x800C;&#x4E14;&#x4F1A;&#x5BFC;&#x81F4;&#x5DF2;&#x6709;&#x7684;&#x5143;&#x7D20;&#x5168;&#x90E8;&#x590D;&#x5236;1&#x6B21;&#x3002;&#x56E0;&#x6B64;&#xFF0C;&#x4ECE;&#x5207;&#x7247;&#x7684;&#x5F00;&#x5934;&#x6DFB;&#x52A0;&#x5143;&#x7D20;&#x7684;&#x6027;&#x80FD;&#x4E00;&#x822C;&#x8981;&#x6BD4;&#x4ECE;&#x5C3E;&#x90E8;&#x8FFD;&#x52A0;&#x5143;&#x7D20;&#x7684;&#x6027;&#x80FD;&#x5DEE;&#x5F88;&#x591A;&#x3002;</p>
<p>&#x7531;&#x4E8E;<code>append</code>&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x65B0;&#x7684;&#x5207;&#x7247;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x5B83;&#x652F;&#x6301;&#x94FE;&#x5F0F;&#x64CD;&#x4F5C;&#x3002;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x5C06;&#x591A;&#x4E2A;<code>append</code>&#x64CD;&#x4F5C;&#x7EC4;&#x5408;&#x8D77;&#x6765;&#xFF0C;&#x5B9E;&#x73B0;&#x5728;&#x5207;&#x7247;&#x4E2D;&#x95F4;&#x63D2;&#x5165;&#x5143;&#x7D20;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a []<span class="hljs-keyword">int</span>
a = <span class="hljs-built_in">append</span>(a[:i], <span class="hljs-built_in">append</span>([]<span class="hljs-keyword">int</span>{x}, a[i:]...)...)     <span class="hljs-comment">// &#x5728;&#x7B2C;i&#x4E2A;&#x4F4D;&#x7F6E;&#x63D2;&#x5165;x</span>
a = <span class="hljs-built_in">append</span>(a[:i], <span class="hljs-built_in">append</span>([]<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>,<span class="hljs-number">2</span>,<span class="hljs-number">3</span>}, a[i:]...)...) <span class="hljs-comment">// &#x5728;&#x7B2C;i&#x4E2A;&#x4F4D;&#x7F6E;&#x63D2;&#x5165;&#x5207;&#x7247;</span>
</code></pre>
<p>&#x6BCF;&#x4E2A;&#x6DFB;&#x52A0;&#x64CD;&#x4F5C;&#x4E2D;&#x7684;&#x7B2C;&#x4E8C;&#x4E2A;<code>append</code>&#x8C03;&#x7528;&#x90FD;&#x4F1A;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x4E34;&#x65F6;&#x5207;&#x7247;&#xFF0C;&#x5E76;&#x5C06;<code>a[i:]</code>&#x7684;&#x5185;&#x5BB9;&#x590D;&#x5236;&#x5230;&#x65B0;&#x521B;&#x5EFA;&#x7684;&#x5207;&#x7247;&#x4E2D;&#xFF0C;&#x7136;&#x540E;&#x5C06;&#x4E34;&#x65F6;&#x521B;&#x5EFA;&#x7684;&#x5207;&#x7247;&#x518D;&#x8FFD;&#x52A0;&#x5230;<code>a[:i]</code>&#x3002;</p>
<p>&#x53EF;&#x4EE5;&#x7528;<code>copy</code>&#x548C;<code>append</code>&#x7EC4;&#x5408;&#x53EF;&#x4EE5;&#x907F;&#x514D;&#x521B;&#x5EFA;&#x4E2D;&#x95F4;&#x7684;&#x4E34;&#x65F6;&#x5207;&#x7247;&#xFF0C;&#x540C;&#x6837;&#x662F;&#x5B8C;&#x6210;&#x6DFB;&#x52A0;&#x5143;&#x7D20;&#x7684;&#x64CD;&#x4F5C;&#xFF1A;</p>
<pre><code class="lang-go">a = <span class="hljs-built_in">append</span>(a, <span class="hljs-number">0</span>)     <span class="hljs-comment">// &#x5207;&#x7247;&#x6269;&#x5C55;1&#x4E2A;&#x7A7A;&#x95F4;</span>
<span class="hljs-built_in">copy</span>(a[i+<span class="hljs-number">1</span>:], a[i:]) <span class="hljs-comment">// a[i:]&#x5411;&#x540E;&#x79FB;&#x52A8;1&#x4E2A;&#x4F4D;&#x7F6E;</span>
a[i] = x             <span class="hljs-comment">// &#x8BBE;&#x7F6E;&#x65B0;&#x6DFB;&#x52A0;&#x7684;&#x5143;&#x7D20;</span>
</code></pre>
<p>&#x7B2C;&#x4E00;&#x53E5;<code>append</code>&#x7528;&#x4E8E;&#x6269;&#x5C55;&#x5207;&#x7247;&#x7684;&#x957F;&#x5EA6;&#xFF0C;&#x4E3A;&#x8981;&#x63D2;&#x5165;&#x7684;&#x5143;&#x7D20;&#x7559;&#x51FA;&#x7A7A;&#x95F4;&#x3002;&#x7B2C;&#x4E8C;&#x53E5;<code>copy</code>&#x64CD;&#x4F5C;&#x5C06;&#x8981;&#x63D2;&#x5165;&#x4F4D;&#x7F6E;&#x5F00;&#x59CB;&#x4E4B;&#x540E;&#x7684;&#x5143;&#x7D20;&#x5411;&#x540E;&#x632A;&#x52A8;&#x4E00;&#x4E2A;&#x4F4D;&#x7F6E;&#x3002;&#x7B2C;&#x4E09;&#x53E5;&#x771F;&#x5B9E;&#x5730;&#x5C06;&#x65B0;&#x6DFB;&#x52A0;&#x7684;&#x5143;&#x7D20;&#x8D4B;&#x503C;&#x5230;&#x5BF9;&#x5E94;&#x7684;&#x4F4D;&#x7F6E;&#x3002;&#x64CD;&#x4F5C;&#x8BED;&#x53E5;&#x867D;&#x7136;&#x5197;&#x957F;&#x4E86;&#x4E00;&#x70B9;&#xFF0C;&#x4F46;&#x662F;&#x76F8;&#x6BD4;&#x524D;&#x9762;&#x7684;&#x65B9;&#x6CD5;&#xFF0C;&#x53EF;&#x4EE5;&#x51CF;&#x5C11;&#x4E2D;&#x95F4;&#x521B;&#x5EFA;&#x7684;&#x4E34;&#x65F6;&#x5207;&#x7247;&#x3002;</p>
<p>&#x7528;<code>copy</code>&#x548C;<code>append</code>&#x7EC4;&#x5408;&#x4E5F;&#x53EF;&#x4EE5;&#x5B9E;&#x73B0;&#x5728;&#x4E2D;&#x95F4;&#x4F4D;&#x7F6E;&#x63D2;&#x5165;&#x591A;&#x4E2A;&#x5143;&#x7D20;(&#x4E5F;&#x5C31;&#x662F;&#x63D2;&#x5165;&#x4E00;&#x4E2A;&#x5207;&#x7247;):</p>
<pre><code class="lang-go">a = <span class="hljs-built_in">append</span>(a, x...)       <span class="hljs-comment">// &#x4E3A;x&#x5207;&#x7247;&#x6269;&#x5C55;&#x8DB3;&#x591F;&#x7684;&#x7A7A;&#x95F4;</span>
<span class="hljs-built_in">copy</span>(a[i+<span class="hljs-built_in">len</span>(x):], a[i:]) <span class="hljs-comment">// a[i:]&#x5411;&#x540E;&#x79FB;&#x52A8;len(x)&#x4E2A;&#x4F4D;&#x7F6E;</span>
<span class="hljs-built_in">copy</span>(a[i:], x)            <span class="hljs-comment">// &#x590D;&#x5236;&#x65B0;&#x6DFB;&#x52A0;&#x7684;&#x5207;&#x7247;</span>
</code></pre>
<p>&#x7A0D;&#x663E;&#x4E0D;&#x8DB3;&#x7684;&#x662F;&#xFF0C;&#x5728;&#x7B2C;&#x4E00;&#x53E5;&#x6269;&#x5C55;&#x5207;&#x7247;&#x5BB9;&#x91CF;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x6269;&#x5C55;&#x7A7A;&#x95F4;&#x90E8;&#x5206;&#x7684;&#x5143;&#x7D20;&#x590D;&#x5236;&#x662F;&#x6CA1;&#x6709;&#x5FC5;&#x8981;&#x7684;&#x3002;&#x6CA1;&#x6709;&#x4E13;&#x95E8;&#x7684;&#x5185;&#x7F6E;&#x51FD;&#x6570;&#x7528;&#x4E8E;&#x6269;&#x5C55;&#x5207;&#x7247;&#x7684;&#x5BB9;&#x91CF;&#xFF0C;<code>append</code>&#x672C;&#x8D28;&#x662F;&#x7528;&#x4E8E;&#x8FFD;&#x52A0;&#x5143;&#x7D20;&#x800C;&#x4E0D;&#x662F;&#x6269;&#x5C55;&#x5BB9;&#x91CF;&#xFF0C;&#x6269;&#x5C55;&#x5207;&#x7247;&#x5BB9;&#x91CF;&#x53EA;&#x662F;<code>append</code>&#x7684;&#x4E00;&#x4E2A;&#x526F;&#x4F5C;&#x7528;&#x3002;</p>
<p><strong>&#x5220;&#x9664;&#x5207;&#x7247;&#x5143;&#x7D20;</strong></p>
<p>&#x6839;&#x636E;&#x8981;&#x5220;&#x9664;&#x5143;&#x7D20;&#x7684;&#x4F4D;&#x7F6E;&#x6709;&#x4E09;&#x79CD;&#x60C5;&#x51B5;&#xFF1A;&#x4ECE;&#x5F00;&#x5934;&#x4F4D;&#x7F6E;&#x5220;&#x9664;&#xFF0C;&#x4ECE;&#x4E2D;&#x95F4;&#x4F4D;&#x7F6E;&#x5220;&#x9664;&#xFF0C;&#x4ECE;&#x5C3E;&#x90E8;&#x5220;&#x9664;&#x3002;&#x5176;&#x4E2D;&#x5220;&#x9664;&#x5207;&#x7247;&#x5C3E;&#x90E8;&#x7684;&#x5143;&#x7D20;&#x6700;&#x5FEB;&#xFF1A;</p>
<pre><code class="lang-go">a = []<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>}
a = a[:<span class="hljs-built_in">len</span>(a)<span class="hljs-number">-1</span>]   <span class="hljs-comment">// &#x5220;&#x9664;&#x5C3E;&#x90E8;1&#x4E2A;&#x5143;&#x7D20;</span>
a = a[:<span class="hljs-built_in">len</span>(a)-N]   <span class="hljs-comment">// &#x5220;&#x9664;&#x5C3E;&#x90E8;N&#x4E2A;&#x5143;&#x7D20;</span>
</code></pre>
<p>&#x5220;&#x9664;&#x5F00;&#x5934;&#x7684;&#x5143;&#x7D20;&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x79FB;&#x52A8;&#x6570;&#x636E;&#x6307;&#x9488;&#xFF1A;</p>
<pre><code class="lang-go">a = []<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>}
a = a[<span class="hljs-number">1</span>:] <span class="hljs-comment">// &#x5220;&#x9664;&#x5F00;&#x5934;1&#x4E2A;&#x5143;&#x7D20;</span>
a = a[N:] <span class="hljs-comment">// &#x5220;&#x9664;&#x5F00;&#x5934;N&#x4E2A;&#x5143;&#x7D20;</span>
</code></pre>
<p>&#x5220;&#x9664;&#x5F00;&#x5934;&#x7684;&#x5143;&#x7D20;&#x4E5F;&#x53EF;&#x4EE5;&#x4E0D;&#x79FB;&#x52A8;&#x6570;&#x636E;&#x6307;&#x9488;&#xFF0C;&#x4F46;&#x662F;&#x5C06;&#x540E;&#x9762;&#x7684;&#x6570;&#x636E;&#x5411;&#x5F00;&#x5934;&#x79FB;&#x52A8;&#x3002;&#x53EF;&#x4EE5;&#x7528;<code>append</code>&#x539F;&#x5730;&#x5B8C;&#x6210;&#xFF08;&#x6240;&#x8C13;&#x539F;&#x5730;&#x5B8C;&#x6210;&#x662F;&#x6307;&#x5728;&#x539F;&#x6709;&#x7684;&#x5207;&#x7247;&#x6570;&#x636E;&#x5BF9;&#x5E94;&#x7684;&#x5185;&#x5B58;&#x533A;&#x95F4;&#x5185;&#x5B8C;&#x6210;&#xFF0C;&#x4E0D;&#x4F1A;&#x5BFC;&#x81F4;&#x5185;&#x5B58;&#x7A7A;&#x95F4;&#x7ED3;&#x6784;&#x7684;&#x53D8;&#x5316;&#xFF09;&#xFF1A;</p>
<pre><code class="lang-go">a = []<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>}
a = <span class="hljs-built_in">append</span>(a[:<span class="hljs-number">0</span>], a[<span class="hljs-number">1</span>:]...) <span class="hljs-comment">// &#x5220;&#x9664;&#x5F00;&#x5934;1&#x4E2A;&#x5143;&#x7D20;</span>
a = <span class="hljs-built_in">append</span>(a[:<span class="hljs-number">0</span>], a[N:]...) <span class="hljs-comment">// &#x5220;&#x9664;&#x5F00;&#x5934;N&#x4E2A;&#x5143;&#x7D20;</span>
</code></pre>
<p>&#x4E5F;&#x53EF;&#x4EE5;&#x7528;<code>copy</code>&#x5B8C;&#x6210;&#x5220;&#x9664;&#x5F00;&#x5934;&#x7684;&#x5143;&#x7D20;&#xFF1A;</p>
<pre><code class="lang-go">a = []<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>}
a = a[:<span class="hljs-built_in">copy</span>(a, a[<span class="hljs-number">1</span>:])] <span class="hljs-comment">// &#x5220;&#x9664;&#x5F00;&#x5934;1&#x4E2A;&#x5143;&#x7D20;</span>
a = a[:<span class="hljs-built_in">copy</span>(a, a[N:])] <span class="hljs-comment">// &#x5220;&#x9664;&#x5F00;&#x5934;N&#x4E2A;&#x5143;&#x7D20;</span>
</code></pre>
<p>&#x5BF9;&#x4E8E;&#x5220;&#x9664;&#x4E2D;&#x95F4;&#x7684;&#x5143;&#x7D20;&#xFF0C;&#x9700;&#x8981;&#x5BF9;&#x5269;&#x4F59;&#x7684;&#x5143;&#x7D20;&#x8FDB;&#x884C;&#x4E00;&#x6B21;&#x6574;&#x4F53;&#x632A;&#x52A8;&#xFF0C;&#x540C;&#x6837;&#x53EF;&#x4EE5;&#x7528;<code>append</code>&#x6216;<code>copy</code>&#x539F;&#x5730;&#x5B8C;&#x6210;&#xFF1A;</p>
<pre><code class="lang-go">a = []<span class="hljs-keyword">int</span>{<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>, ...}

a = <span class="hljs-built_in">append</span>(a[:i], a[i+<span class="hljs-number">1</span>:]...) <span class="hljs-comment">// &#x5220;&#x9664;&#x4E2D;&#x95F4;1&#x4E2A;&#x5143;&#x7D20;</span>
a = <span class="hljs-built_in">append</span>(a[:i], a[i+N:]...) <span class="hljs-comment">// &#x5220;&#x9664;&#x4E2D;&#x95F4;N&#x4E2A;&#x5143;&#x7D20;</span>

a = a[:i+<span class="hljs-built_in">copy</span>(a[i:], a[i+<span class="hljs-number">1</span>:])]  <span class="hljs-comment">// &#x5220;&#x9664;&#x4E2D;&#x95F4;1&#x4E2A;&#x5143;&#x7D20;</span>
a = a[:i+<span class="hljs-built_in">copy</span>(a[i:], a[i+N:])]  <span class="hljs-comment">// &#x5220;&#x9664;&#x4E2D;&#x95F4;N&#x4E2A;&#x5143;&#x7D20;</span>
</code></pre>
<p>&#x5220;&#x9664;&#x5F00;&#x5934;&#x7684;&#x5143;&#x7D20;&#x548C;&#x5220;&#x9664;&#x5C3E;&#x90E8;&#x7684;&#x5143;&#x7D20;&#x90FD;&#x53EF;&#x4EE5;&#x8BA4;&#x4E3A;&#x662F;&#x5220;&#x9664;&#x4E2D;&#x95F4;&#x5143;&#x7D20;&#x64CD;&#x4F5C;&#x7684;&#x7279;&#x6B8A;&#x60C5;&#x51B5;&#x3002;</p>
<p><strong>&#x5207;&#x7247;&#x5185;&#x5B58;&#x6280;&#x5DE7;</strong></p>
<p>&#x5728;&#x672C;&#x8282;&#x5F00;&#x5934;&#x7684;&#x6570;&#x7EC4;&#x90E8;&#x5206;&#x6211;&#x4EEC;&#x63D0;&#x5230;&#x8FC7;&#x6709;&#x7C7B;&#x4F3C;<code>[0]int</code>&#x7684;&#x7A7A;&#x6570;&#x7EC4;&#xFF0C;&#x7A7A;&#x6570;&#x7EC4;&#x4E00;&#x822C;&#x5F88;&#x5C11;&#x7528;&#x5230;&#x3002;&#x4F46;&#x662F;&#x5BF9;&#x4E8E;&#x5207;&#x7247;&#x6765;&#x8BF4;&#xFF0C;<code>len</code>&#x4E3A;<code>0</code>&#x4F46;&#x662F;<code>cap</code>&#x5BB9;&#x91CF;&#x4E0D;&#x4E3A;<code>0</code>&#x7684;&#x5207;&#x7247;&#x5219;&#x662F;&#x975E;&#x5E38;&#x6709;&#x7528;&#x7684;&#x7279;&#x6027;&#x3002;&#x5F53;&#x7136;&#xFF0C;&#x5982;&#x679C;<code>len</code>&#x548C;<code>cap</code>&#x90FD;&#x4E3A;<code>0</code>&#x7684;&#x8BDD;&#xFF0C;&#x5219;&#x53D8;&#x6210;&#x4E00;&#x4E2A;&#x771F;&#x6B63;&#x7684;&#x7A7A;&#x5207;&#x7247;&#xFF0C;&#x867D;&#x7136;&#x5B83;&#x5E76;&#x4E0D;&#x662F;&#x4E00;&#x4E2A;<code>nil</code>&#x503C;&#x7684;&#x5207;&#x7247;&#x3002;&#x5728;&#x5224;&#x65AD;&#x4E00;&#x4E2A;&#x5207;&#x7247;&#x662F;&#x5426;&#x4E3A;&#x7A7A;&#x65F6;&#xFF0C;&#x4E00;&#x822C;&#x901A;&#x8FC7;<code>len</code>&#x83B7;&#x53D6;&#x5207;&#x7247;&#x7684;&#x957F;&#x5EA6;&#x6765;&#x5224;&#x65AD;&#xFF0C;&#x4E00;&#x822C;&#x5F88;&#x5C11;&#x5C06;&#x5207;&#x7247;&#x548C;<code>nil</code>&#x503C;&#x505A;&#x76F4;&#x63A5;&#x7684;&#x6BD4;&#x8F83;&#x3002;</p>
<p>&#x6BD4;&#x5982;&#x4E0B;&#x9762;&#x7684;<code>TrimSpace</code>&#x51FD;&#x6570;&#x7528;&#x4E8E;&#x5220;&#x9664;<code>[]byte</code>&#x4E2D;&#x7684;&#x7A7A;&#x683C;&#x3002;&#x51FD;&#x6570;&#x5B9E;&#x73B0;&#x5229;&#x7528;&#x4E86;0&#x957F;&#x5207;&#x7247;&#x7684;&#x7279;&#x6027;&#xFF0C;&#x5B9E;&#x73B0;&#x9AD8;&#x6548;&#x800C;&#x4E14;&#x7B80;&#x6D01;&#x3002;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> TrimSpace(s []<span class="hljs-keyword">byte</span>) []<span class="hljs-keyword">byte</span> {
    b := s[:<span class="hljs-number">0</span>]
    <span class="hljs-keyword">for</span> _, x := <span class="hljs-keyword">range</span> s {
        <span class="hljs-keyword">if</span> x != <span class="hljs-string">&apos; &apos;</span> {
            b = <span class="hljs-built_in">append</span>(b, x)
        }
    }
    <span class="hljs-keyword">return</span> b
}
</code></pre>
<p>&#x5176;&#x5B9E;&#x7C7B;&#x4F3C;&#x7684;&#x6839;&#x636E;&#x8FC7;&#x6EE4;&#x6761;&#x4EF6;&#x539F;&#x5730;&#x5220;&#x9664;&#x5207;&#x7247;&#x5143;&#x7D20;&#x7684;&#x7B97;&#x6CD5;&#x90FD;&#x53EF;&#x4EE5;&#x91C7;&#x7528;&#x7C7B;&#x4F3C;&#x7684;&#x65B9;&#x5F0F;&#x5904;&#x7406;&#xFF08;&#x56E0;&#x4E3A;&#x662F;&#x5220;&#x9664;&#x64CD;&#x4F5C;&#x4E0D;&#x4F1A;&#x51FA;&#x73B0;&#x5185;&#x5B58;&#x4E0D;&#x8DB3;&#x7684;&#x60C5;&#x5F62;&#xFF09;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> Filter(s []<span class="hljs-keyword">byte</span>, fn <span class="hljs-keyword">func</span>(x <span class="hljs-keyword">byte</span>) <span class="hljs-keyword">bool</span>) []<span class="hljs-keyword">byte</span> {
    b := s[:<span class="hljs-number">0</span>]
    <span class="hljs-keyword">for</span> _, x := <span class="hljs-keyword">range</span> s {
        <span class="hljs-keyword">if</span> !fn(x) {
            b = <span class="hljs-built_in">append</span>(b, x)
        }
    }
    <span class="hljs-keyword">return</span> b
}
</code></pre>
<p>&#x5207;&#x7247;&#x9AD8;&#x6548;&#x64CD;&#x4F5C;&#x7684;&#x8981;&#x70B9;&#x662F;&#x8981;&#x964D;&#x4F4E;&#x5185;&#x5B58;&#x5206;&#x914D;&#x7684;&#x6B21;&#x6570;&#xFF0C;&#x5C3D;&#x91CF;&#x4FDD;&#x8BC1;<code>append</code>&#x64CD;&#x4F5C;&#x4E0D;&#x4F1A;&#x8D85;&#x51FA;<code>cap</code>&#x7684;&#x5BB9;&#x91CF;&#xFF0C;&#x964D;&#x4F4E;&#x89E6;&#x53D1;&#x5185;&#x5B58;&#x5206;&#x914D;&#x7684;&#x6B21;&#x6570;&#x548C;&#x6BCF;&#x6B21;&#x5206;&#x914D;&#x5185;&#x5B58;&#x5927;&#x5C0F;&#x3002;</p>
<p><strong>&#x907F;&#x514D;&#x5207;&#x7247;&#x5185;&#x5B58;&#x6CC4;&#x6F0F;</strong></p>
<p>&#x5982;&#x524D;&#x9762;&#x6240;&#x8BF4;&#xFF0C;&#x5207;&#x7247;&#x64CD;&#x4F5C;&#x5E76;&#x4E0D;&#x4F1A;&#x590D;&#x5236;&#x5E95;&#x5C42;&#x7684;&#x6570;&#x636E;&#x3002;&#x5E95;&#x5C42;&#x7684;&#x6570;&#x7EC4;&#x4F1A;&#x88AB;&#x4FDD;&#x5B58;&#x5728;&#x5185;&#x5B58;&#x4E2D;&#xFF0C;&#x76F4;&#x5230;&#x5B83;&#x4E0D;&#x518D;&#x88AB;&#x5F15;&#x7528;&#x3002;&#x4F46;&#x662F;&#x6709;&#x65F6;&#x5019;&#x53EF;&#x80FD;&#x4F1A;&#x56E0;&#x4E3A;&#x4E00;&#x4E2A;&#x5C0F;&#x7684;&#x5185;&#x5B58;&#x5F15;&#x7528;&#x800C;&#x5BFC;&#x81F4;&#x5E95;&#x5C42;&#x6574;&#x4E2A;&#x6570;&#x7EC4;&#x5904;&#x4E8E;&#x88AB;&#x4F7F;&#x7528;&#x7684;&#x72B6;&#x6001;&#xFF0C;&#x8FD9;&#x4F1A;&#x5EF6;&#x8FDF;&#x81EA;&#x52A8;&#x5185;&#x5B58;&#x56DE;&#x6536;&#x5668;&#x5BF9;&#x5E95;&#x5C42;&#x6570;&#x7EC4;&#x7684;&#x56DE;&#x6536;&#x3002;</p>
<p>&#x4F8B;&#x5982;&#xFF0C;<code>FindPhoneNumber</code>&#x51FD;&#x6570;&#x52A0;&#x8F7D;&#x6574;&#x4E2A;&#x6587;&#x4EF6;&#x5230;&#x5185;&#x5B58;&#xFF0C;&#x7136;&#x540E;&#x641C;&#x7D22;&#x7B2C;&#x4E00;&#x4E2A;&#x51FA;&#x73B0;&#x7684;&#x7535;&#x8BDD;&#x53F7;&#x7801;&#xFF0C;&#x6700;&#x540E;&#x7ED3;&#x679C;&#x4EE5;&#x5207;&#x7247;&#x65B9;&#x5F0F;&#x8FD4;&#x56DE;&#x3002;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> FindPhoneNumber(filename <span class="hljs-keyword">string</span>) []<span class="hljs-keyword">byte</span> {
    b, _ := ioutil.ReadFile(filename)
    <span class="hljs-keyword">return</span> regexp.MustCompile(<span class="hljs-string">&quot;[0-9]+&quot;</span>).Find(b)
}
</code></pre>
<p>&#x8FD9;&#x6BB5;&#x4EE3;&#x7801;&#x8FD4;&#x56DE;&#x7684;<code>[]byte</code>&#x6307;&#x5411;&#x4FDD;&#x5B58;&#x6574;&#x4E2A;&#x6587;&#x4EF6;&#x7684;&#x6570;&#x7EC4;&#x3002;&#x56E0;&#x4E3A;&#x5207;&#x7247;&#x5F15;&#x7528;&#x4E86;&#x6574;&#x4E2A;&#x539F;&#x59CB;&#x6570;&#x7EC4;&#xFF0C;&#x5BFC;&#x81F4;&#x81EA;&#x52A8;&#x5783;&#x573E;&#x56DE;&#x6536;&#x5668;&#x4E0D;&#x80FD;&#x53CA;&#x65F6;&#x91CA;&#x653E;&#x5E95;&#x5C42;&#x6570;&#x7EC4;&#x7684;&#x7A7A;&#x95F4;&#x3002;&#x4E00;&#x4E2A;&#x5C0F;&#x7684;&#x9700;&#x6C42;&#x53EF;&#x80FD;&#x5BFC;&#x81F4;&#x9700;&#x8981;&#x957F;&#x65F6;&#x95F4;&#x4FDD;&#x5B58;&#x6574;&#x4E2A;&#x6587;&#x4EF6;&#x6570;&#x636E;&#x3002;&#x8FD9;&#x867D;&#x7136;&#x8FD9;&#x5E76;&#x4E0D;&#x662F;&#x4F20;&#x7EDF;&#x610F;&#x4E49;&#x4E0A;&#x7684;&#x5185;&#x5B58;&#x6CC4;&#x6F0F;&#xFF0C;&#x4F46;&#x662F;&#x53EF;&#x80FD;&#x4F1A;&#x62D6;&#x6162;&#x7CFB;&#x7EDF;&#x7684;&#x6574;&#x4F53;&#x6027;&#x80FD;&#x3002;</p>
<p>&#x8981;&#x4FEE;&#x590D;&#x8FD9;&#x4E2A;&#x95EE;&#x9898;&#xFF0C;&#x53EF;&#x4EE5;&#x5C06;&#x611F;&#x5174;&#x8DA3;&#x7684;&#x6570;&#x636E;&#x590D;&#x5236;&#x5230;&#x4E00;&#x4E2A;&#x65B0;&#x7684;&#x5207;&#x7247;&#x4E2D;&#xFF08;&#x6570;&#x636E;&#x7684;&#x4F20;&#x503C;&#x662F;Go&#x8BED;&#x8A00;&#x7F16;&#x7A0B;&#x7684;&#x4E00;&#x4E2A;&#x54F2;&#x5B66;&#xFF0C;&#x867D;&#x7136;&#x4F20;&#x503C;&#x6709;&#x4E00;&#x5B9A;&#x7684;&#x4EE3;&#x4EF7;&#xFF0C;&#x4F46;&#x662F;&#x6362;&#x53D6;&#x7684;&#x597D;&#x5904;&#x662F;&#x5207;&#x65AD;&#x4E86;&#x5BF9;&#x539F;&#x59CB;&#x6570;&#x636E;&#x7684;&#x4F9D;&#x8D56;&#xFF09;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> FindPhoneNumber(filename <span class="hljs-keyword">string</span>) []<span class="hljs-keyword">byte</span> {
    b, _ := ioutil.ReadFile(filename)
    b = regexp.MustCompile(<span class="hljs-string">&quot;[0-9]+&quot;</span>).Find(b)
    <span class="hljs-keyword">return</span> <span class="hljs-built_in">append</span>([]<span class="hljs-keyword">byte</span>{}, b...)
}
</code></pre>
<p>&#x7C7B;&#x4F3C;&#x7684;&#x95EE;&#x9898;&#xFF0C;&#x5728;&#x5220;&#x9664;&#x5207;&#x7247;&#x5143;&#x7D20;&#x65F6;&#x53EF;&#x80FD;&#x4F1A;&#x9047;&#x5230;&#x3002;&#x5047;&#x8BBE;&#x5207;&#x7247;&#x91CC;&#x5B58;&#x653E;&#x7684;&#x662F;&#x6307;&#x9488;&#x5BF9;&#x8C61;&#xFF0C;&#x90A3;&#x4E48;&#x4E0B;&#x9762;&#x5220;&#x9664;&#x672B;&#x5C3E;&#x7684;&#x5143;&#x7D20;&#x540E;&#xFF0C;&#x88AB;&#x5220;&#x9664;&#x7684;&#x5143;&#x7D20;&#x4F9D;&#x7136;&#x88AB;&#x5207;&#x7247;&#x5E95;&#x5C42;&#x6570;&#x7EC4;&#x5F15;&#x7528;&#xFF0C;&#x4ECE;&#x800C;&#x5BFC;&#x81F4;&#x4E0D;&#x80FD;&#x53CA;&#x65F6;&#x88AB;&#x81EA;&#x52A8;&#x5783;&#x573E;&#x56DE;&#x6536;&#x5668;&#x56DE;&#x6536;&#xFF08;&#x8FD9;&#x8981;&#x4F9D;&#x8D56;&#x56DE;&#x6536;&#x5668;&#x7684;&#x5B9E;&#x73B0;&#x65B9;&#x5F0F;&#xFF09;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a []*<span class="hljs-keyword">int</span>{ ... }
a = a[:<span class="hljs-built_in">len</span>(a)<span class="hljs-number">-1</span>]    <span class="hljs-comment">// &#x88AB;&#x5220;&#x9664;&#x7684;&#x6700;&#x540E;&#x4E00;&#x4E2A;&#x5143;&#x7D20;&#x4F9D;&#x7136;&#x88AB;&#x5F15;&#x7528;, &#x53EF;&#x80FD;&#x5BFC;&#x81F4;GC&#x64CD;&#x4F5C;&#x88AB;&#x963B;&#x788D;</span>
</code></pre>
<p>&#x4FDD;&#x9669;&#x7684;&#x65B9;&#x5F0F;&#x662F;&#x5148;&#x5C06;&#x9700;&#x8981;&#x81EA;&#x52A8;&#x5185;&#x5B58;&#x56DE;&#x6536;&#x7684;&#x5143;&#x7D20;&#x8BBE;&#x7F6E;&#x4E3A;<code>nil</code>&#xFF0C;&#x4FDD;&#x8BC1;&#x81EA;&#x52A8;&#x56DE;&#x6536;&#x5668;&#x53EF;&#x4EE5;&#x53D1;&#x73B0;&#x9700;&#x8981;&#x56DE;&#x6536;&#x7684;&#x5BF9;&#x8C61;&#xFF0C;&#x7136;&#x540E;&#x518D;&#x8FDB;&#x884C;&#x5207;&#x7247;&#x7684;&#x5220;&#x9664;&#x64CD;&#x4F5C;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a []*<span class="hljs-keyword">int</span>{ ... }
a[<span class="hljs-built_in">len</span>(a)<span class="hljs-number">-1</span>] = <span class="hljs-literal">nil</span> <span class="hljs-comment">// GC&#x56DE;&#x6536;&#x6700;&#x540E;&#x4E00;&#x4E2A;&#x5143;&#x7D20;&#x5185;&#x5B58;</span>
a = a[:<span class="hljs-built_in">len</span>(a)<span class="hljs-number">-1</span>]  <span class="hljs-comment">// &#x4ECE;&#x5207;&#x7247;&#x5220;&#x9664;&#x6700;&#x540E;&#x4E00;&#x4E2A;&#x5143;&#x7D20;</span>
</code></pre>
<p>&#x5F53;&#x7136;&#xFF0C;&#x5982;&#x679C;&#x5207;&#x7247;&#x5B58;&#x5728;&#x7684;&#x5468;&#x671F;&#x5F88;&#x77ED;&#x7684;&#x8BDD;&#xFF0C;&#x53EF;&#x4EE5;&#x4E0D;&#x7528;&#x523B;&#x610F;&#x5904;&#x7406;&#x8FD9;&#x4E2A;&#x95EE;&#x9898;&#x3002;&#x56E0;&#x4E3A;&#x5982;&#x679C;&#x5207;&#x7247;&#x672C;&#x8EAB;&#x5DF2;&#x7ECF;&#x53EF;&#x4EE5;&#x88AB;GC&#x56DE;&#x6536;&#x7684;&#x8BDD;&#xFF0C;&#x5207;&#x7247;&#x5BF9;&#x5E94;&#x7684;&#x6BCF;&#x4E2A;&#x5143;&#x7D20;&#x81EA;&#x7136;&#x4E5F;&#x5C31;&#x662F;&#x53EF;&#x4EE5;&#x88AB;&#x56DE;&#x6536;&#x7684;&#x4E86;&#x3002;</p>
<p><strong>&#x5207;&#x7247;&#x7C7B;&#x578B;&#x5F3A;&#x5236;&#x8F6C;&#x6362;</strong></p>
<p>&#x4E3A;&#x4E86;&#x5B89;&#x5168;&#xFF0C;&#x5F53;&#x4E24;&#x4E2A;&#x5207;&#x7247;&#x7C7B;&#x578B;<code>[]T</code>&#x548C;<code>[]Y</code>&#x7684;&#x5E95;&#x5C42;&#x539F;&#x59CB;&#x5207;&#x7247;&#x7C7B;&#x578B;&#x4E0D;&#x540C;&#x65F6;&#xFF0C;Go&#x8BED;&#x8A00;&#x662F;&#x65E0;&#x6CD5;&#x76F4;&#x63A5;&#x8F6C;&#x6362;&#x7C7B;&#x578B;&#x7684;&#x3002;&#x4E0D;&#x8FC7;&#x5B89;&#x5168;&#x90FD;&#x662F;&#x6709;&#x4E00;&#x5B9A;&#x4EE3;&#x4EF7;&#x7684;&#xFF0C;&#x6709;&#x65F6;&#x5019;&#x8FD9;&#x79CD;&#x8F6C;&#x6362;&#x662F;&#x6709;&#x5B83;&#x7684;&#x4EF7;&#x503C;&#x7684;&#x2014;&#x2014;&#x53EF;&#x4EE5;&#x7B80;&#x5316;&#x7F16;&#x7801;&#x6216;&#x8005;&#x662F;&#x63D0;&#x5347;&#x4EE3;&#x7801;&#x7684;&#x6027;&#x80FD;&#x3002;&#x6BD4;&#x5982;&#x5728;64&#x4F4D;&#x7CFB;&#x7EDF;&#x4E0A;&#xFF0C;&#x9700;&#x8981;&#x5BF9;&#x4E00;&#x4E2A;<code>[]float64</code>&#x5207;&#x7247;&#x8FDB;&#x884C;&#x9AD8;&#x901F;&#x6392;&#x5E8F;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x5C06;&#x5B83;&#x5F3A;&#x5236;&#x8F6C;&#x4E3A;<code>[]int</code>&#x6574;&#x6570;&#x5207;&#x7247;&#xFF0C;&#x7136;&#x540E;&#x4EE5;&#x6574;&#x6570;&#x7684;&#x65B9;&#x5F0F;&#x8FDB;&#x884C;&#x6392;&#x5E8F;&#xFF08;&#x56E0;&#x4E3A;<code>float64</code>&#x9075;&#x5FAA;IEEE754&#x6D6E;&#x70B9;&#x6570;&#x6807;&#x51C6;&#x7279;&#x6027;&#xFF0C;&#x5F53;&#x6D6E;&#x70B9;&#x6570;&#x6709;&#x5E8F;&#x65F6;&#x5BF9;&#x5E94;&#x7684;&#x6574;&#x6570;&#x4E5F;&#x5FC5;&#x7136;&#x662F;&#x6709;&#x5E8F;&#x7684;&#xFF09;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x7684;&#x4EE3;&#x7801;&#x901A;&#x8FC7;&#x4E24;&#x79CD;&#x65B9;&#x6CD5;&#x5C06;<code>[]float64</code>&#x7C7B;&#x578B;&#x7684;&#x5207;&#x7247;&#x8F6C;&#x6362;&#x4E3A;<code>[]int</code>&#x7C7B;&#x578B;&#x7684;&#x5207;&#x7247;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-comment">// +build amd64 arm64</span>

<span class="hljs-keyword">import</span> <span class="hljs-string">&quot;sort&quot;</span>

<span class="hljs-keyword">var</span> a = []<span class="hljs-keyword">float64</span>{<span class="hljs-number">4</span>, <span class="hljs-number">2</span>, <span class="hljs-number">5</span>, <span class="hljs-number">7</span>, <span class="hljs-number">2</span>, <span class="hljs-number">1</span>, <span class="hljs-number">88</span>, <span class="hljs-number">1</span>}

<span class="hljs-keyword">func</span> SortFloat64FastV1(a []<span class="hljs-keyword">float64</span>) {
    <span class="hljs-comment">// &#x5F3A;&#x5236;&#x7C7B;&#x578B;&#x8F6C;&#x6362;</span>
    <span class="hljs-keyword">var</span> b []<span class="hljs-keyword">int</span> = ((*[<span class="hljs-number">1</span> &lt;&lt; <span class="hljs-number">20</span>]<span class="hljs-keyword">int</span>)(unsafe.Pointer(&amp;a[<span class="hljs-number">0</span>])))[:<span class="hljs-built_in">len</span>(a):<span class="hljs-built_in">cap</span>(a)]

    <span class="hljs-comment">// &#x4EE5;int&#x65B9;&#x5F0F;&#x7ED9;float64&#x6392;&#x5E8F;</span>
    sort.Ints(b)
}

<span class="hljs-keyword">func</span> SortFloat64FastV2(a []<span class="hljs-keyword">float64</span>) {
    <span class="hljs-comment">// &#x901A;&#x8FC7; reflect.SliceHeader &#x66F4;&#x65B0;&#x5207;&#x7247;&#x5934;&#x90E8;&#x4FE1;&#x606F;&#x5B9E;&#x73B0;&#x8F6C;&#x6362;</span>
    <span class="hljs-keyword">var</span> c []<span class="hljs-keyword">int</span>
    aHdr := (*reflect.SliceHeader)(unsafe.Pointer(&amp;a))
    cHdr := (*reflect.SliceHeader)(unsafe.Pointer(&amp;c))
    *cHdr = *aHdr

    <span class="hljs-comment">// &#x4EE5;int&#x65B9;&#x5F0F;&#x7ED9;float64&#x6392;&#x5E8F;</span>
    sort.Ints(c)
}
</code></pre>
<p>&#x7B2C;&#x4E00;&#x79CD;&#x5F3A;&#x5236;&#x8F6C;&#x6362;&#x662F;&#x5148;&#x5C06;&#x5207;&#x7247;&#x6570;&#x636E;&#x7684;&#x5F00;&#x59CB;&#x5730;&#x5740;&#x8F6C;&#x6362;&#x4E3A;&#x4E00;&#x4E2A;&#x8F83;&#x5927;&#x7684;&#x6570;&#x7EC4;&#x7684;&#x6307;&#x9488;&#xFF0C;&#x7136;&#x540E;&#x5BF9;&#x6570;&#x7EC4;&#x6307;&#x9488;&#x5BF9;&#x5E94;&#x7684;&#x6570;&#x7EC4;&#x91CD;&#x65B0;&#x505A;&#x5207;&#x7247;&#x64CD;&#x4F5C;&#x3002;&#x4E2D;&#x95F4;&#x9700;&#x8981;<code>unsafe.Pointer</code>&#x6765;&#x8FDE;&#x63A5;&#x4E24;&#x4E2A;&#x4E0D;&#x540C;&#x7C7B;&#x578B;&#x7684;&#x6307;&#x9488;&#x4F20;&#x9012;&#x3002;&#x9700;&#x8981;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;Go&#x8BED;&#x8A00;&#x5B9E;&#x73B0;&#x4E2D;&#x975E;0&#x5927;&#x5C0F;&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x4E0D;&#x5F97;&#x8D85;&#x8FC7;2GB&#xFF0C;&#x56E0;&#x6B64;&#x9700;&#x8981;&#x9488;&#x5BF9;&#x6570;&#x7EC4;&#x5143;&#x7D20;&#x7684;&#x7C7B;&#x578B;&#x5927;&#x5C0F;&#x8BA1;&#x7B97;&#x6570;&#x7EC4;&#x7684;&#x6700;&#x5927;&#x957F;&#x5EA6;&#x8303;&#x56F4;&#xFF08;<code>[]uint8</code>&#x6700;&#x5927;2GB&#xFF0C;<code>[]uint16</code>&#x6700;&#x5927;1GB&#xFF0C;&#x4EE5;&#x6B64;&#x7C7B;&#x63A8;&#xFF0C;&#x4F46;&#x662F;<code>[]struct{}</code>&#x6570;&#x7EC4;&#x7684;&#x957F;&#x5EA6;&#x53EF;&#x4EE5;&#x8D85;&#x8FC7;2GB&#xFF09;&#x3002;</p>
<p>&#x7B2C;&#x4E8C;&#x79CD;&#x8F6C;&#x6362;&#x64CD;&#x4F5C;&#x662F;&#x5206;&#x522B;&#x53D6;&#x5230;&#x4E24;&#x4E2A;&#x4E0D;&#x540C;&#x7C7B;&#x578B;&#x7684;&#x5207;&#x7247;&#x5934;&#x4FE1;&#x606F;&#x6307;&#x9488;&#xFF0C;&#x4EFB;&#x4F55;&#x7C7B;&#x578B;&#x7684;&#x5207;&#x7247;&#x5934;&#x90E8;&#x4FE1;&#x606F;&#x5E95;&#x5C42;&#x90FD;&#x662F;&#x5BF9;&#x5E94;<code>reflect.SliceHeader</code>&#x7ED3;&#x6784;&#xFF0C;&#x7136;&#x540E;&#x901A;&#x8FC7;&#x66F4;&#x65B0;&#x7ED3;&#x6784;&#x4F53;&#x65B9;&#x5F0F;&#x6765;&#x66F4;&#x65B0;&#x5207;&#x7247;&#x4FE1;&#x606F;&#xFF0C;&#x4ECE;&#x800C;&#x5B9E;&#x73B0;<code>a</code>&#x5BF9;&#x5E94;&#x7684;<code>[]float64</code>&#x5207;&#x7247;&#x5230;<code>c</code>&#x5BF9;&#x5E94;&#x7684;<code>[]int</code>&#x7C7B;&#x578B;&#x5207;&#x7247;&#x7684;&#x8F6C;&#x6362;&#x3002;</p>
<p>&#x901A;&#x8FC7;&#x57FA;&#x51C6;&#x6D4B;&#x8BD5;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x53D1;&#x73B0;&#x7528;<code>sort.Ints</code>&#x5BF9;&#x8F6C;&#x6362;&#x540E;&#x7684;<code>[]int</code>&#x6392;&#x5E8F;&#x7684;&#x6027;&#x80FD;&#x8981;&#x6BD4;&#x7528;<code>sort.Float64s</code>&#x6392;&#x5E8F;&#x7684;&#x6027;&#x80FD;&#x597D;&#x4E00;&#x70B9;&#x3002;&#x4E0D;&#x8FC7;&#x9700;&#x8981;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;&#x8FD9;&#x4E2A;&#x65B9;&#x6CD5;&#x53EF;&#x884C;&#x7684;&#x524D;&#x63D0;&#x662F;&#x8981;&#x4FDD;&#x8BC1;<code>[]float64</code>&#x4E2D;&#x6CA1;&#x6709;NaN&#x548C;Inf&#x7B49;&#x975E;&#x89C4;&#x8303;&#x7684;&#x6D6E;&#x70B9;&#x6570;&#xFF08;&#x56E0;&#x4E3A;&#x6D6E;&#x70B9;&#x6570;&#x4E2D;NaN&#x4E0D;&#x53EF;&#x6392;&#x5E8F;&#xFF0C;&#x6B63;0&#x548C;&#x8D1F;0&#x76F8;&#x7B49;&#xFF0C;&#x4F46;&#x662F;&#x6574;&#x6570;&#x4E2D;&#x6CA1;&#x6709;&#x8FD9;&#x7C7B;&#x60C5;&#x5F62;&#xFF09;&#x3002;</p>

                                
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